单项选择题

In the opinion of the author, （）are being destroyed terribly at present.

A．the oceans
B．the atmosphere
C．the rain forests
D．all the above

<上一题目录下一题>

热门试题

问答题

Directions: For this part, write a passage about 100~- 120 words entitled Friendship.

填空题

A．thought B．bought C．brought D．though