Câu hỏi: Not all books belong _________this class.

A. in

B. to

C. for

D. at

Câu 1: This organization is quick __________ sending relief goods to the flooded areas.

A. at

B. as

C. up

D. by

Câu 2: Toxic chemicals in the air and land have also driven many species ______ the verge of extinction.

A. of

B. about

C. at

D. to

Câu 3: You should pay more attention __________ what your teacher explains.

A. in

B. at

C. on

D. to

Câu 4: Governments have enacted laws to protect wildlife ________commercial trade and overhunting.

A. from

B. without

C. for

D. at

Câu 5: A beautiful clock was given _________ her by a handsome boy.

A. down

B. up

C. to

D. with

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

A. by

B. of

C. with

D. to