Câu hỏi: I'm very grateful .......... her ......... help.

A. to / of

B. in / for

C. to / with

D. to / for

Câu 1: We were very doubtful .............. his ability.

A. about

B. with

C. for

D. to

Câu 2: Don't you think you should try to be friendly ... your classmates?

A. to

B. of

C. with

D. by

Câu 3: It was very kind .......... you to lend me the money I needed.

A. for

B. of

C. to

D. with

Câu 4: This organization is quick ... sending relief goods to the flooded areas.

A. with

B. at

C. for

D. about

Câu 5: We are looking forward ....... seeing you again.

A. to

B. of

C. for

D. by

Câu 6: Clearing forests for timber has resulted ....... the loss of biodiversity.

A. with

B. at

C. in

D. for