The cars _________ yesterday sell very well.

A. what I saw B. that I see

C. what I see D. that I saw

D 【解析】试题分析：根据题意可知是定语从句，因为先行词是The cars 故用that引导，根据语境可知是一般过去式；句意昨天我看到的那些汽车买的很好。结合句意，故选D

Do not try to repair the computer yourself _____ you are an expert.

A. if B. that C. unless D. because

C 【解析】句意：如果你不是一个专家，不要努力自己修电脑。if如果，that那个；unless如果不，除非；because因为。此处表示条件状语从句，结合句意，不是专家，不要自己修电脑，故用unless。故选C。

–Did the teacher tell you _____ this afternoon?

–Yes, we will go to visit the Great Wall.

A. to go where B. how to do C. what to do D. to do what

C 【解析】句意：——老师告诉你今天下午要做什么吗？——告诉了，我们将去参观长城。作为动词tell的宾语，用疑问词+to do。根据we will go to visit the Great Wall.可知我们将要去做什么， 故为what to do。故选C。

Something is wrong with my watch. I must have it ________.

A. repairing B. to repair C. repair D. repaired

D 【解析】句意：我的手表出故障了。我必须让人修理它。have sth done让某物被……，本题watch和repair之间是本栋关系，故用过去分词repaired。故选D。

Today my father is feeling ______ to go to work.

A. enough good B. well enough

C. good enough D. enough well

B 【解析】试题分析：根据enough 修饰形容词和副词要后置，根据题意可知身体好用形容词well；句意：今天我的父亲感觉到足够的好，能够去上班。结合句意，故选B

Have a glass of water, please. You ______ be thirsty after a long walk.

A. should B. can C. must D. have to

C 【解析】句意：请喝一杯水。你走了很长的路后，你一定渴了。should应该，表示建议；can能，表示能力；must一定，表示有把握的推测；have to不得不，必要要求。根据after a long walk.可知此处有把握推测你一定渴了，故用情态动词must。故选C。

I think ______ impossible for him _____ the work without any help.

A. it, finishes B. that, to finish C. this, finishing D. it, to finish

D 【解析】句意：我认为对于他来说，没有任何帮助完成那个工作是不可能的。根据句型think it+形容词+for sb to do sth“认为做某事对于某人来说是……”，it是形式宾语，to do sth是真正宾语。故选D。

There was so much noise in the room ________.

A. that we couldn’t hear him clearly B. but we couldn’t hear him clearly

C. that we couldn’t hear him clear D. because we couldn’t hear him clear

A 【解析】句意：在那个房间里有如此多的噪音以至于我们听不清楚他说的话。so…that …“如此……以至于…….”，引导结果状语从句，根据句意吗，前后之间是因果关系。修饰动词hear，用副词clearly。故选A。

______ weather we have today!

A. What a sunny B. What nice C. How beautiful D. How a fine

B 【解析】句意：今天我们度过了多么美好的一天啊！感叹词有两个：what和how，what形容词，修饰名词或名词短语；how为副词，修饰形容词或副词。weather是不可数名词，故用what+形容词修饰，故选B。

根据要求改写句子。每空一词。

1.I have to buy a robot so that I have more free time. (改为同义句)

I have to buy a robot ______ _______ ______ have more free time.

2.He doesn’t have to go out for lunch because his mother makes a lunchbox for him every day. (改为同义句)

His mother makes a lunchbox for him every day. ____ ____ _____, he doesn’t have to go out for lunch.

3.They design this kind of robot to do housework. (改为被动语态)

This kind of robot ________ ________ to do housework.

4.My mobile phone’s battery can last for a week. (对划线部分提问)

______ _______ can your mobile phone’s battery last?

1.in order to 2.As aresult 3.is designed 4.Howlong 【解析】 1.so that引导的表示目的的状语从句，此处接动词，故用in order to表示目的状语。so that I have more free time. =in order to have more free time“为了有更多的空闲时间”，故为(1)...