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________hehasbeenlivingonadifferentplanet,heprobablykno...

練習題2.02W

問題詳情:

________hehasbeenlivingonadifferentplanet,heprobablykno...

________ he has been living on a different planet, he probably knows that there's a new version of Windows—it's called Vista.

A. Once  B. Unless  C. Though  D. If

【回答】

B

知識點:連詞

題型:選擇題

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