1.By the time you get back,great changes___in this area.
1.By the time you get back,great changes___in this area.
為什么用問will have taken place?2.On his next birthday he __marries for ten years.用will have been 為什么不用has been?3.john _____now for the light in his room is still on .為什么選must be studying而不選must be studying?4.、I_____tennis quite well,but I have not had time to play since the new year.為什么用play不用played5.——Has sam finished his homework today?
——I have on idea .He_____it this morning.為什么選was doing不能選has done
為什么用問will have taken place?2.On his next birthday he __marries for ten years.用will have been 為什么不用has been?3.john _____now for the light in his room is still on .為什么選must be studying而不選must be studying?4.、I_____tennis quite well,but I have not had time to play since the new year.為什么用play不用played5.——Has sam finished his homework today?
——I have on idea .He_____it this morning.為什么選was doing不能選has done
英語人氣：530 ℃時間：2019-11-19 11:33:57
優(yōu)質解答
by the time所跟時態(tài)要看主句和從句兩個方面.但可以肯定的是,主句肯定是完成時.這里從句是you get back,是條件句,用一般時態(tài)表示將來.意思是：你一回來,就會發(fā)現(xiàn)這個地方發(fā)生了很大的變化.所以主句用將來完成時.next...
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