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

A. to

B. in

C. on

D. at

Câu 1: What time did they arrive .... London?

A. at

B. on

C. in

D. to

Câu 2: .......... mistake, I took the wrong book from my desk this morning.

A. Through

B. By

C. With

D. In

Câu 3: When she arrived in Britain, she wasn't used to driving ......... the left.

A. at

B. to

C. in

D. on

Câu 4: She likes to go .......... a picnic.

A. for

B. on

C. for and on are correct

D. by

Câu 5: I work hard .......... help my family.

A. so as to

B. in order to

C. in order that

D. a and b

Câu 6: She smiled .......... him.

A. at

B. with

C. to

D. about