What does the word they in line 2 refer to?

Read the passage and choose the correct answer

Singapore is a small country in the South East Asia. It consists of 35 islands between Malaysia and Indonesia. They together comprise an area of 682.7 sq km. That is slightly more than 3.5 times the size of Washington DC. Singapore enjoys tropical climate. It’s hot, humid, and rainy most of the time. There are two distinct monsoon seasons – Northeastern monsoon from December to March and Southwestern monsoon from June to September. The most common terrain is lowland. Singapore’s highest point is only 166 meters. It has a coastline of 193 kilometers.

11. What does the passage mainly discuss?

Read the passage below and decide which option A, B or C best fits each space 

Today, supermarkets are found in almost every large city in the world. But the first supermarket (6)______opened only fifty years ago. It was opened in New York by a man named Michael Cullen.

A supermarket is different (7)___________other types of stores in several ways. In supermarkets, goods are placed on open shelves. The (8)__________ choose what they want and take them to the checkout counter. This means that fewer shop assistants are needed than in other stores. The way products are displayed is another difference between supermarkets and many other types of stores; (9)__________ example, in supermarkets, there is usually a display of small inexpensive items just in front of the checkout counter: candies, chocolates, magazines, cheap foods and so on.

Most customers (10)__________go to a supermarket buy goods from a shopping list. They know exactly what they need to buy. They do the shopping according to a plan.

People are going to build a new library in the area.
   => A new library _{...................................................... ................................................................}

She last wore that dress at her sister’s wedding.

   =>   She hasn’t ..............................................................................

He lived in Ha Noi since he was 12.

             A     B            C           D

My sister enjoys read about wild animals and natural mysteries.     

                      A       B                    C                     D

Maryam and Lan are pen pals, they ________ two times a week.