问题

The number of giant pandas is becoming _____________ because there are fewer and fewer living areas.
A:to watch
B:watch
C:watching
D:watched;
B:watch
C:watching
D:watched;
正确答案是:
同类题型
Why didnt you tell him about the meeting— He rushed out of the room ______ I could say a word.
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visited my old family home, memory came ______ back
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