问题

vernment has taken some measuresto overcome the lack of electricity, but it may take some time _____ we haveenough power

A:is
B:that is
C:are
D:who are

正确答案是：

同类题型

Tere are a few books on the shelf. But only one of them is _______

you finished your work —Yes. Actually, I _______ it before you came.

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I feel it an honour __________ to speakhere.