杭州交通信息网徐工双联液压泵:monomial choice
来源：百度文库 编辑：杭州交通信息网 时间：2024/04/26 21:08:41
There ____ be a house here.
A.use to B.used to C.is used to D.was used to
Do you know where your English teacher ____ ?
A.leave for B.left for
并说明理由，谢谢
A.use to B.used to C.is used to D.was used to
Do you know where your English teacher ____ ?
A.leave for B.left for
并说明理由，谢谢
1,b
used to过去曾经
2,A
疑问句中助动词提前后,动词还原原形
B B 因为used to 的意思是过去，第二题因为English teacher 离开了，要用过去式
b曾经的意思
a离开某地去了哪