Câu hỏi: Smoking is harmful _____________ our health.

A. to

B. by

C. against

D. with

Câu 1: He insisted ______ taking us dinner.

A. on

B. in

C. over

D. of

Câu 2: How long have they been working _____________ the company?

A. for

B. at

C. in

D. on

Câu 3: She always takes good care _______ her children.

A. for

B. in

C. of

D. with

Câu 4: Don't shout ___________ the child when he makes a mistake.

A. out

B. up

C. down

D. at

Câu 5: The pens made___________ plastic are very cheap.

A. by

B. with

C. of

D. to

Câu 6: Was your friend successful ___________ getting a loanfrom the bank?

A. in

B. by

C. with

D. about