Câu hỏi: He worked hard ________ a mechanic for ten years before being appointed manager.

A. as

B. at

C. with

D. by

Câu 1: Reviewers describe books _______ “hard-to-put-down”, or “hard-to-pick-up-again”.

A. as

B. for

C. into

D. in

Câu 2: We benefit greatly ____________the medicines and other products that biodiversity provides.

A. from

B. without

C. for

D. at

Câu 3: They held a party to congratulate _______ their son’s success to become an engineer.

A. on

B. in

C. to

D. up

Câu 4: Don’t you know what happened _________ the people who went on holiday with us?

A. about

B. to

C. by

D. at

Câu 5: I keep sneezing because I got wet_________ the way home yesterday.

A. during

B. at

C. by

D. on

Câu 6: What did that man die ________? –A heart attack.

A. by

B. of

C. with

D. to