31. The American Civil War lasted four years ____ the North won in the end.

A.after B.before C.when　 D.then

32. He was about to tell me the secret ________ someone patted him on the shoulder.

33. I’ve worked with children before，so I know what ________ in my new job.

A.expectedB.to expect C.to be expecting　D.expects

34.Please remind me _____ he said he was going.I may be in time to see him off.

A.where B.when C.how D.what

35. _______makes this shop different is that it offers more personal services.

A.What B.Who C.Whatever D.Whoever

答案： BDBBA