单项选择题
A.trained B.has trained C.would trained D.had trained
You（）to lock the door at night.A.should B.oughtC.must...
单项选择题You（）to lock the door at night.
A.should B.ought C.must D.shall
-- Hello, could I speak to Don please? --（）A.Who are yo...
单项选择题-- Hello, could I speak to Don please? --（）
A.Who are you B.What’s the problem C.Are you Jane D.Who’s speaking?
It is very convenient（）here.A.livingB.live C.livedD.t...
单项选择题It is very convenient（）here.
A.living B.live C.lived D.to live
