题目内容
I don’t know ______ or not the books _____ to the homeless children next month are really useful.
A.if, given | B.whether, to be given | C.whether, giving | D.if, which are given |
B
解析

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题目内容
I don’t know ______ or not the books _____ to the homeless children next month are really useful.
A.if, given | B.whether, to be given | C.whether, giving | D.if, which are given |
B
解析