e the first United States flag is widely believed.
[A] When Besty Ross
[B] That Besty Ross
[C] Besty Ross
[D] Whether Besty Ross
4. 由于主语过长,更多的情况下用it代替主语从句,而把that引导的从句放到后边
It is a fact accepted by economists that technological…scarcities.(“it”充当逻辑主语。)
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