题目

动词时态练习
1.Jia bi's twenty.he_____some chinese by the time he ___ ten.
A.had learned,was B.has learned,was C..learned,was D.has learned,had been
2.Sandy_____here now.I guess she_____to the lab.
A.isn't,has gone B.is,has gone C.isn't,went D.isn't,has been
3.The street light____on when night falls.
A.will be B.have been C.would been D.are

提问时间：2020-10-27

答案

毫无争议,不知你想问什么1 此人20了,所以他10岁时的事情,当然全是过去时态他8岁是个状态,所以was表示过去即可而他8岁时已经知道一些中文了,所以过去完成时2 桑迪现在不在这儿,我想她在实验室has gone 说话时所指人物...