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Thestudentswereplayingintheplayground

練習題2.72W

問題詳情:

Thestudentswereplayingintheplayground

The students were playing in the playground ______ it began to rain heavily.

        A. when         B. as          C. while        D. after

【回答】

A

知識點:連詞

題型:選擇題

標籤: