31 The students were all entertained in a Mexican restaurant,at Professor Brian’s C.

A money B pay C expense D loss

布朗教授在一家墨西哥餐厅请学生吃饭。

32 Tom,what did you do with my documents?I have never seen such a B and disorder.

A mass B mess C guess D bus

汤姆，你拿你的文件在干什么？我从来没见到这么乱过。

33 If she wants to stay thin,she must make a A in her diet.

A change B turn C run D go

如果她想保持身材（瘦），她必须在她的饮食中有所变化。

34 A the war of Independence,the United States was an English colony

A Before B At C In D Between

在独立战争之前，美国是英国的殖民地。

35 No matter D the little sisters managed to round the sheep up and drive them back home safely

A it was snowing hard B hard it was snowing

C how it was snowing hard D how hard it was snowing

不管雪下的多大，两个小姐妹还是安全地把羊拢起来赶回了家。

36 A police officer claimed that he had attempted to A paying his fare

A avoid B reject C refuse D neglect

警官说这个年轻人试图拒付费用。

37 While I was in the university,I leaned taking a photo,B is very useful now for me.

A it B which C that D at

我在大学里学会了照相，现在对我很有用。

38 This kind of material expands C the temperature increasing

A to B for C with D at

这种材料随温度的提高而膨胀。

39 People at the party worried about him because no one was aware A he had gone

A of where B of the place where C where D the place

晚会上的人都为他担忧，因为没人知道他去哪儿了。

40 A sudden noise of fire-engine made him C to the door

A hurrying B hurried C hurry D to hurry

火警的突然响起使他匆忙走到门口。

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