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by the way,what have you been doing.

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by the way,what have you been doing.
是宾语从句吗?what have you been doning 是什么现在完成时吗
by the way,what you have been doing.这样行吗
by the way,what have you been doing.
1.这是现在完成进行时态,表示从过去某时间发生的动作一直延续到现在,且正在进行(!).又如:
I've been living here for 10 years.
2.by the way是插入语,表示“顺便问一声”、“顺便提一句”等.
By the way,how is your father doing?(顺便问一句,你爸爸好吗?)