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

A. in

B. on

C. under

D. below

Câu 1: Express Money Transfer is one of the quickest ways ……..help us to send money.

A. who

B. whose

C. when

D. that

Câu 2: A hydroelectric dam ______________ in this area now.

A. is building

B. is being built

C. build

D. was built

Câu 3: Could you please provide us ……………..some more modern equipment?

A. for

B. by

C. in

D. with

Câu 4: Deforestation _________ destroying Earth’s plant and animal variety.

A. are

B. be

C. is

D. being

Câu 5: I would like to send these letters …………………..air mail.

A. in

B. with

C. by

D. over

Câu 6: ……………fax transmission is commonly used in most offices.

A. A

B. An

C. The

D. x