Câu hỏi: Don’t be afraid .......... the dog. He is quite harmless.

A. in

B. of

C. at

D. for

Câu 1: Since all vehicles were banned from the city centre, the air has been safe ........... pollution.

A. about

B. apart from

C. from

D. against

Câu 2: It was a confusing situation. Many things were happening ......... the same time.

A. at

B. on

C. in

D. of

Câu 3: What time did they arrive ......... the hotel?

A. to

B. at

C. in

D. on

Câu 4: Contrary ......... what most people used to believed, these minerals are not renewable.

A. with

B. for

C. against

D. to

Câu 5: I saw Tom ............ a concert last Saturday.

A. on

B. at

C. in

D. for

Câu 6: Don’t you get tired .......... watching that TV programme every night?

A. with

B. by

C. of

D. at