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Mysisterissobusythatshereallycan'thelp

欄目: 練習題 / 發佈於: / 人氣:3.19W

問題詳情:

Mysisterissobusythatshereallycan'thelp

My sister is so busy that she really can't help ________ some washing.

A. does  B. to do  C. doing

【回答】

B

知識點:動詞和動詞短語

題型:選擇題

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