题目内容

按要求做题。

1. She has been swimming for 2 hours. (改为同义句)
She has been swimming       2 hour____.
2. My little sister is always behind me. (改为同义句)
My little sister       me                                 .
3. Tom played football for an hour. (改为现在完成进行时)
Tom                           football for an hour.

1. since    ago  2. follows   all the  time 3. has  been playing .
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