1.-How did he get back last night?

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1.-How did he get back last night?
- I think he ____ back on foot,as there were no buses or taxies then at all.
A.might have come B.needn't have come
C.must have come D.should have come
2.The doctor said I was over-weight.If only I ___ less!
A.ate B.have been eating C.have eaten D.had eaten
3.The image of a devoted and noble angel in white ___ heals the wounded and rescues the dying is making a comeback___ the nation faces a crisis.
A.that...because B.who...when C.which...that D.what...as
Key:1.A 2.D 3.A ,

1.A是虚拟语气的用法,表示与过去的事实相反
2.D 同上
3.A 前面是定语从句,后面是原因状语从句

1.-How did he get back last night? －When did he come back home last night? How did you get to home last night? 1.--did jack come back early last night? 1.-Did Jack come back early last night? ---did jack come back early last night? .----Did Jack come back early last night? --How did you_____the movie last night? what did he do last night?作文 What did he do last night? what did he do last night?看电视 he did _____at home last night