问题

Was it because of his laziness_______ he didn’t do the experiment successfully?- No, it was because of his carelessness.

A:that
B:while
C:for
D:as

正确答案是：

同类题型

The managers discussed the plan that they would like to see _______the next year[ ]

It __________ no difference to me whether their teamcan win the game or not.

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________ landscape appeals tomany visitors every year.