Câu hỏi: 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 1: Our flat is ....... the second floor of the building.

A. on

B. at

C. in

D. of

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

A. at

B. on

C. in

D. of

Câu 3: He was bitterly ashamed ......... her for doing such things.

A. for

B. by

C. in

D. of

Câu 4: Don’t be afraid .......... the dog. He is quite harmless.

A. in

B. of

C. at

D. for

Câu 5: Contrary ......... what most people used to believed, these minerals are not renewable.

A. with

B. for

C. against

D. to

Câu 6: Why were you so unfriendly .......... Linda? Have you had an argument with her?

A. of

B. to

C. for

D. with