Câu hỏi: His father used the money he won to set_________ his own company.

A. down

B. up

C. at

D. in

Câu 1: Maintaining biodiversity is important _______ us in many ways.

A. in

B. for

C. from

D. by

Câu 2: Pay attention _______all traffic signs when you are travelling in the street.

A. for

B. on

C. to

D. from

Câu 3: A beautiful clock was given _________ her by a handsome boy.

A. down

B. up

C. to

D. with

Câu 4: He worked hard ________ a mechanic for ten years before being appointed manager.

A. as

B. at

C. with

D. by

Câu 5: Governments have enacted laws to protect wildlife ________commercial trade and overhunting.

A. from

B. without

C. for

D. at

Câu 6: You should pay more attention __________ what your teacher explains.

A. in

B. at

C. on

D. to