Câu hỏi: Some large cities may have to ban cars.... the city center to wipe out smoke.

A. of

B. from

C. to

D. with

Câu 1: She likes to go .......... a picnic.

A. for

B. on

C. for and on are correct

D. by

Câu 2: They chose him .......... their leader.

A. with

B. for

C. by

D. into

Câu 3: Your work is .......... the average.

A. under

B. beneath

C. down

D. below

Câu 4: We rejoice .......... her success.

A. in

B. at

C. over

D. all are correct

Câu 5: Our flat is ......... the second floor of the building.

A. to

B. in

C. on

D. at

Câu 6: They have been waiting ......... the bus for half an hour.

A. for

B. to

C. of

D. with