2. 外语
  3. How is it______your roommate’s request and yours are identical?

How is it______your roommate’s request and yours are identical?

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问题 How is it______your roommate’s request and yours are identical?
选项 A、if
B、so
C、what
D、that
答案D
解析 本题考查how is it that…句型。四个选项中只有that可以与how is it构成固定搭配，意为“为什么…?…是怎么回事?”。此外，本句还考查it和that的用法。该句中it是形式主语，真正的主语是其后that引导的从句your roommate’s request and yours are identical。it在此无具体意义，只是帮助把真正的主语移至句子后部，避免造成句子的头重脚轻。
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