Câu hỏi: The two children blamed each other ...... the window.

A. to break

B. breaking

C. for breaking

D. having broken

Câu 1: The leopard is _________ the threat of extinction.

A. in

B. on

C. under

D. below

Câu 2: People are destroying the air by adding ...... to it.

A. pollutants

B. polluters

C. pollution

D. polluted

Câu 3: ……………fax transmission is commonly used in most offices.

A. A

B. An

C. The

D. x

Câu 4: Could you please provide us ……………..some more modern equipment?

A. for

B. by

C. in

D. with

Câu 5: She glanced briefly ________ his lapel badge.

A. in

B. on

C. at

D. up

Câu 6: What about ___________ the solution together this afternoon?

A. find

B. finding

C. to find

D. to finding