问题

There is hardly an environment on earth ______ some species of animal or other have not adapted successfully.

A:to which
B:in which
C:for which
D:on which

正确答案是：

同类题型

When facing a hard question, most people can’t give an answer ______.

It’s impossible ____ a taxi on such a rainyday.

Would you like him to paint your door with yellow stars?— I’d rather he ________ it blue, and without any decorations. [ ]

He used to ______ table tennis, but now he is getting interested in tennis.

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