she-------(piay)football for 2 hours.They--------(piay)happily now.用现在完成时还是过去完成时

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she-------(piay)football for 2 hours.They--------(piay)happily now.用现在完成时还是过去完成时
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she-------(piay)football for 2 hours.They--------(piay)happily now.用现在完成时还是过去完成时
she-------(piay)football for 2 hours.They--------(piay)happily now.用现在完成时还是过去完成时

she-------(piay)football for 2 hours.They--------(piay)happily now.用现在完成时还是过去完成时
She (has been playing) football for 2 hours.
They---are playing-----(piay)happily now.

第一个现在完成进行时
发生在过去持续到现在
第二个现在进行时 因为有now

She has been playing football for 2 hours. 这个句子的动作表示从过去一直持续到现在还在进行,所以用现在完成进行时
They are playing happily now. 这个句子有now,所以用现在进行时the young man------(skate)since he was eight years old.用现在完成时还是过去完成时,现在...

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She has been playing football for 2 hours. 这个句子的动作表示从过去一直持续到现在还在进行,所以用现在完成进行时
They are playing happily now. 这个句子有now,所以用现在进行时

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