when,where后能不能跟现在完成时

when,where后能不能跟现在完成时 during 后能不能加现在完成时 现在完成时后可以跟形容词么?IT HAS BEEN PAID When and where go for the holiday hasn't decided.为什么用现在完成时? I have bougut a new car.when and where()you ()it?用过去时还是现在完成时 能不能在Where 后面用Case when 语句 before,after,though,when后面跟非谓语形式比如before后面可以跟being done,或doing .though后不可跟完成能不能帮讲的清楚一点啊 point 作先行词到底什麽时候跟where,什麽时候跟when point后一定跟where从句吗?we've just trying to reaching a point_____both sides will sit down together and talk. A where B that C when D which 现在完成时后若跟时间状语的话,一定要带for或since吗 Since when have you known each otherwhen后面不是不能跟现在完成时吗为什么此句中这么用 现在完成时跟过去完成时?不懂啊 现在完成时是否可以跟in make后能不能跟宾语从句如题 he doesn't know where the post office isis 后怎么可以跟where啊? where have they been?是现在完成时吗? 是不是when.现在完成时.since.how long 现在完成时 .for. Write sentences to describe what you have seen or done.提示：where you went when you went therewhy it was special主要用到现在完成时