摘 要: | I.单项填空1.He looks so tired and sleepy;he__ up last night.A.would have stayed B.couldn’t have stayedC.could have stayed D.must have stayed2.Please open the windows to__somefresh air.A.let in B.let out C.enter D.bringin3.__at home,he got down to his own business.A.When arrive B.On his arrlval C.Arrived D.On reaching
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