用适当的时态填空1.She's __________ (live) here ever since she was te
用适当的时态填空 1.She's __________ (live) here ever since she was ten 2.Both of them ________(be)in Hongkong for ten days 3.Both of them _______(come)to Hongkong ten days ago 4.Half an hour__________(pass)since the train ________(leave) 5.Mary ______(lose) her pen._______ you______(see)it here and there
1 lived 根据since从句,主句用现在完成时. 2 have been 句中有时间状语 for ten days,故用现在完成时. 3 came 句中有时间状语ten days ago,用于一般过去时. 4 has passed ,left 同第一句.主句用现在完成时,从句用一般过去时. 5 lost ,Have ,seen 丢钢笔这件事是过去的事,问你现在是否已看到?用现在完成时.