Câu hỏi: Air pollution, together with littering, are causing many problems in our large, industrial cities today.

A. with

B. are

C. many

D. in our large

Câu 1: She has disappeared three days ago, and they are still looking for her now.

A. has disappeared

B. and

C. are still

D. for her

Câu 2: There are much kinds of books in my school library,but readers cannot borrow them.

A. are

B. much

C. in

D. cannot

Câu 3: He said that he has done his homework since 7 o'clock.

A. said

B. has done

C. homework

D. since

Câu 4: Bells told people of happy events, such as weddings and born or, sometimes had to announce unpleasant events such as a death

A. born

B. had to

C. unpleasant

D. events

Câu 5: Minh Hanh, who is one of the most famous fashion designers in Vietnam, are preparing for a new show.

A. who

B. the most

C. fashion-designers

D. are

Câu 6: Anna Robertson Moses, who was also known as Grand Moses, is considered one of the greatest female artist of US. Art.

A. who was

B. known as

C. is considered

D. female artist