Rewrite the following sentences with the present perfect con

Rewrite the following sentences with the present perfect continuous(改写以下句子,用现在完成进行时)
①I have worried about the operation.(for a month)
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②Sam has talked to his neighbor about his newly-published book.(for two hours)
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③He has drunk wine.(since early this evening)
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④I have thought about it.(for ages)
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⑤He has followed his sister.(since she left home after lunch)
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请顺便说一下什么是 现在完成进行时 ,不要太多,请告诉我重要的.

I have been worrying about the operation for a month.
Sam has been talking to his neighbor about his newly-published book for two hours.
He has been drinking wine since early this evening.
I have been thinking about it for ages.
He has been following his sister since she left home after lunch.
进行完成进行时表示状态性的意义,强调动作的持续性,表示一个到目前为止尚未完成的动作.
常与 for+时间段、since+时间点、all morning、all day、all week等这样表示一段时间的时间状语连用,以强调在这一段时间里,某项活动正在持续~~~
亲自手打的哦~~~希望你能满意~

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