____, the bird may abandon the nest, leaving the chicks to die

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.

The "greenhouse effect" is the warming that happens when certain gases in Earth's atmosphere (23)__________heat. These gases let in light but keep heat from escaping, like the glass walls of a greenhouse. First, sunlight shines onto the Earth's surface, (24)____it is absorbed and then radiates back into the atmosphere as heat. In the atmosphere, “greenhouse gases trap some of this heat, and the (25) ___________escapes into space. The more greenhouse gases are in the atmosphere, the more heat gets trapped.

Scientists have known about the greenhouse effect since 1824, when Joseph Fourier calculated that the Earth would be much colder if it had no atmosphere. This greenhouse effect is what keeps the Earth's climate  (26_________. Without it, the Earth's surface would be an average of about 60 degrees Fahrenheit cooler. Scientists often use the term "climate change" instead of global warming. This is because as the Earth's average temperature climbs, winds and ocean currents move heat around the globe in ways that can cool  some areas,  warm others, and change the amount of rain and snow falling.(27)_______, the climate changes differently in different areas.

Điền vào ô 24.

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.

The "greenhouse effect" is the warming that happens when certain gases in Earth's atmosphere (23)__________heat. These gases let in light but keep heat from escaping, like the glass walls of a greenhouse. First, sunlight shines onto the Earth's surface, (24)____it is absorbed and then radiates back into the atmosphere as heat. In the atmosphere, “greenhouse gases trap some of this heat, and the (25) ___________escapes into space. The more greenhouse gases are in the atmosphere, the more heat gets trapped.

Scientists have known about the greenhouse effect since 1824, when Joseph Fourier calculated that the Earth would be much colder if it had no atmosphere. This greenhouse effect is what keeps the Earth's climate  (26_________. Without it, the Earth's surface would be an average of about 60 degrees Fahrenheit cooler. Scientists often use the term "climate change" instead of global warming. This is because as the Earth's average temperature climbs, winds and ocean currents move heat around the globe in ways that can cool  some areas,  warm others, and change the amount of rain and snow falling.(27)_______, the climate changes differently in different areas.

Điền vào ô 23.

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.

The "greenhouse effect" is the warming that happens when certain gases in Earth's atmosphere (23)__________heat. These gases let in light but keep heat from escaping, like the glass walls of a greenhouse. First, sunlight shines onto the Earth's surface, (24)____it is absorbed and then radiates back into the atmosphere as heat. In the atmosphere, “greenhouse gases trap some of this heat, and the (25) ___________escapes into space. The more greenhouse gases are in the atmosphere, the more heat gets trapped.

Scientists have known about the greenhouse effect since 1824, when Joseph Fourier calculated that the Earth would be much colder if it had no atmosphere. This greenhouse effect is what keeps the Earth's climate  (26_________. Without it, the Earth's surface would be an average of about 60 degrees Fahrenheit cooler. Scientists often use the term "climate change" instead of global warming. This is because as the Earth's average temperature climbs, winds and ocean currents move heat around the globe in ways that can cool  some areas,  warm others, and change the amount of rain and snow falling.(27)_______, the climate changes differently in different areas.

Điền vào ô 26.

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.

The "greenhouse effect" is the warming that happens when certain gases in Earth's atmosphere (23)__________heat. These gases let in light but keep heat from escaping, like the glass walls of a greenhouse. First, sunlight shines onto the Earth's surface, (24)____it is absorbed and then radiates back into the atmosphere as heat. In the atmosphere, “greenhouse gases trap some of this heat, and the (25) ___________escapes into space. The more greenhouse gases are in the atmosphere, the more heat gets trapped.

Scientists have known about the greenhouse effect since 1824, when Joseph Fourier calculated that the Earth would be much colder if it had no atmosphere. This greenhouse effect is what keeps the Earth's climate  (26_________. Without it, the Earth's surface would be an average of about 60 degrees Fahrenheit cooler. Scientists often use the term "climate change" instead of global warming. This is because as the Earth's average temperature climbs, winds and ocean currents move heat around the globe in ways that can cool  some areas,  warm others, and change the amount of rain and snow falling.(27)_______, the climate changes differently in different areas.

Điền vào ô 27.

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.

The "greenhouse effect" is the warming that happens when certain gases in Earth's atmosphere (23)__________heat. These gases let in light but keep heat from escaping, like the glass walls of a greenhouse. First, sunlight shines onto the Earth's surface, (24)____it is absorbed and then radiates back into the atmosphere as heat. In the atmosphere, “greenhouse gases trap some of this heat, and the (25) ___________escapes into space. The more greenhouse gases are in the atmosphere, the more heat gets trapped.

Scientists have known about the greenhouse effect since 1824, when Joseph Fourier calculated that the Earth would be much colder if it had no atmosphere. This greenhouse effect is what keeps the Earth's climate  (26_________. Without it, the Earth's surface would be an average of about 60 degrees Fahrenheit cooler. Scientists often use the term "climate change" instead of global warming. This is because as the Earth's average temperature climbs, winds and ocean currents move heat around the globe in ways that can cool  some areas,  warm others, and change the amount of rain and snow falling.(27)_______, the climate changes differently in different areas.

Điền vào ô 25.

Volunteers may be required to obtain Red Cross_______in order to serve through hospitals and healthcare organizations or provide disaster relief.

Teachers’______would rise an average of $1000 under the proposal.

Mark the letter A, B, C or D to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions.

For eliminating pollution, one can switch to alternative and renewable energy sources like bio fuels instead of depending on non-renewable fossil fuels that only helps in polluting our planet.

Mark the letter A, B, C, or D to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions.

With 1960 islands in different sizes and an unbelievable smooth sea surface, Ha Long Bay____its name to one of the worthiest places in the world to visit.

Those in_____of banning laptops in classrooms like to demonstrate how handwritten notes lead   to better learning compared to notes taken on a computer.

It's time for us ________in efficiency and renewable energy, rebuild our cities, towns, municipalities and states.

________the institution type, in the United States, students typically earn credits for courses they take and these credits count towards the completion of a program.

Teachers can tell their students to use mobile apps like "PIAZZA” to access course materials and also to post questions about specific subjects, all________can be done in the classroom or outside the  classroom.

Mark the letter A, B, C or D to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions.

Notwithstanding some members' objections, I think we must go ahead with the plan