Câu hỏi: _____ the children left, the house was very quiet.

A. After

B. Before

C. On

D. To

Câu 1: Anne’s leaving___________ London tomorrow morning.

A. to

B. for

C. of

D. by

Câu 2: Are you worried _____ the final examination?

A. about

B. to

C. with

D. of

Câu 3: He had learned the whole poem _____ heart.

A. in

B. of

C. to

D. by

Câu 4: He has waited _____ her for a long time.

A. to

B. for

C. at

D. until

Câu 5: If you don’t pay attention_________ the teacher, you won’t understand the lesson.

A. for

B. to

C. at

D. about

Câu 6: We were very grateful _________ our friends for all of their assistance.

A. to

B. for

C. off

D. with