Câu hỏi: The students got the librarian_________ books for them.

A. buying

B. to buy

C. buy

D. bought

Câu 1: Mark hopes _______ a small part in the school play.

A. to get

B. getting

C. get

D. got

Câu 2: Air pollution, together with littering, are causing many problems in our large, industrial cities today.

A. are

B. industrial

C. problems

D. with

Câu 3: It is of great ________ to show your interest and politeness when you are having a job interview.

A. important

B. importance

C. importantly

D. unimportant

Câu 4: I was really impressed ………………….the beauty of Dubai.

A. on

B. in

C. to

D. by

Câu 5: He is very keen______ English, but he is not good ______ listening.

A. on/ at

B. on/ in

C. at/ on

D. at/ at

Câu 6: Human beings are ________ greatest threat to survival of endangered species.

A. Ø

B. an

C. the

D. a