说明
A.What...why B.That...what C.What...because D.Why...that(上海高考,00-27)
D. There was a discussion about when we should leave. 关于我们什么时候离开进行了讨论。请做下面的英语试题：
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You can't imagine ____ when they received these nice Christmas presents. A. how they were excited B. how excited they were C. how excited were they D. they were how excited(上海高考,94-16)
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When and where to build the new factory ____ yet. A. is not decided B. are not decided C. has not decided D. have not decided(全国高考,91-32)
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When and where to go for the on-salary holiday ____ yet. A. are not decided B. have not been decided C. is not being decided D. has not been decided(上海高考,03春-28)