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 |
相关知识点
推荐套卷
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 |