It is now over seventy years since Lindbergh _______ across the Atlantic
A. has been flying
B. flew
C. had flown
D. has flown
Giải bởi qa.haylamdo.com
Kiến thức: Thì quá khứ đơn
Giải thích:
since: từ khi (nhấn mạnh sự việc xảy ra trong quá khứ, kéo dài đến hiện tại, được sử dụng với thì hiện tại hoàn thành, quá khứ hoàn thành hoặc thì hiện tại đơn trong mệnh đề chính)
Cấu trúc: since + S + V.ed/ V2
Tạm dịch: Tính đến nay đã hơn bảy mươi năm kể từ khi Lindbergh bay qua Đại Tây Dương.
Chọn B
In most _______ developed countries, up to 50% of _______ population enters higher education at some time in their lives.
Books are still a cheap _______ to get knowledge and entertainment
I didn’t go to work this morning. I stayed at home due to the morning rain
Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.
Great apes are in crisis of becoming extinct
Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions
There is estimated that the Orion nebula contains enough matter to form 10,000 stars.
Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 33 to 38.
Sylvia Earle, a marine botanist and one of the foremost deep-sea explorers, has spent over 6,000 hours, more than seven months, underwater. From her earliest years, Earle had an affinity for marine life, and she took her first plunge into the open sea as a teenager. In the years since then she has taken part in a number of landmark underwater projects, from exploratory expeditions around the world to her celebrated “Jim dive” in 1978, which was the deepest solo dive ever made without cable connecting the diver to a support vessel at the surface of the sea.
Clothed in a Jim suit, a futuristic suit of plastic and metal armor, which was secured to a manned submarine, Sylvia Earle plunged vertically into the Pacific Ocean, at times at the speed of 100 feet per minute. On reaching the ocean floor, she was released from the submarine and from that point her only connection to the sub was an 18-foot tether. For the next 2½ hours, Earle roamed the seabed taking notes, collecting 15 specimens, and planting a U.S. flag. Consumed by a desire to descend deeper still, in 1981 she became involved in the design and manufacture of 20 deep-sea submersibles, one of which took her to a depth of 3,000 feet. This did not end Sylvia Earle’s accomplishments.
It can be inferred from the passage that Sylvia Earle _______.
Tim looks so frightened and upset. He _______ something terrible
- Jean: “Why didn’t you tell me about the plans for the merge?”
- Jack: “I would have told you _______.”
