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

A. are

B. be

C. is

D. being

Câu 1: After she ________ hospital, she had a long holiday.

A. leaves

B. is leaving

C. had left

D. has left

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

A. is building

B. is being built

C. build

D. was built

Câu 3: It is possible for local wildlife to coexist ...... industry.

A. to

B. of

C. in

D. with

Câu 4: The two children blamed each other ...... the window.

A. to break

B. breaking

C. for breaking

D. having broken

Câu 5: ……………fax transmission is commonly used in most offices.

A. A

B. An

C. The

D. x

Câu 6: The ...... friendly products are designed not to harm the natural environment.

A. environment

B. environmental

C. environmentally

D. environmentalism