1.There's only one seat so you'll____sit on my lap.A.must B.have to C.need D.may
问题描述：
1.There's only one seat so you'll____sit on my lap.A.must B.have to C.need D.may
2.Since then,Michael____an unhappy life.
A.live B.lives C.lived D.has lived原因?
答
B have to do sth 不得不
没有座位了,所以你只能坐在我腿上了
D
这题使用了时间副词 since then,凡是看到since,都是用于现在完成时的.