In some national parks, tourists are not fully aware of ______ protection.(environment)
A.
B.
C.
D.

Don’t ask him questions about his family. He hates answering ________ questions.(person)
A.
B.
C.
D.

“They must go to the hospital now.” => Brenda said__________________________.
A.
B.
C.
D.

I don’t have his address so I can’t write to him. => If__________________________________.
A.
B.
C.
D.

Tokyo is bigger than Hanoi. => Hanoi isn’t_____________________________.
A.
B.
C.
D.

Mr. Phong hasn’t come yet. He is supposed to be at the meeting. =>Mr. Phong _____________________________.
A.
B.
C.
D.

People should send their complaints to the main office
=>Their complaints________________________.
A.
B.
C.
D.

The WWF had its operations in areas such as the preservation of _________ diversity, sustainable use of natural resources, the reduction of pollution, and climate change. (biology)
A.
B.
C.
D.

In 1986, the ______ changed its name to World Wide Fund for Nature to better reflect its activities. (organize)
A.
B.
C.
D.

________of oil will lead to the depletion of this natural resource.(exploit)
A.
B.
C.
D.