问题

It must have rained last night, ________ the ground is wet now
A:for
B:because
C:since
D:now that
B:because
C:since
D:now that
正确答案是:
同类题型
I was given three books on sewing, the first one______ I really enjoyed.
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be easy to _______ such bad habits assmoking and heavy drinking, but it is not so easy to quit.