現(xiàn)在完成進行時,表示動作開始于過去,一直持續(xù)到說話時動作還在繼續(xù)
同時具有現(xiàn)在完成,和進行 兩個狀態(tài)
have PP
be V-ing
-----------------------------
have been V-ing 所以是這樣的
He has been working here.為什么要用working?
He has been working here.為什么要用working?
英語人氣：271 ℃時間：2019-10-19 06:19:51
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