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ChenWeiisn'tatschooltoday

練習題1.15W

問題詳情:

ChenWeiisn'tatschooltoday

Chen Wei isn't at school today ________ he is taking a robot competition in Shanghai.(  )

A.so B.because    C.before D.if

【回答】

B

知識點:連詞

題型:選擇題

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