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30.At weekends we help mother with housework in the kitchen         she can enjoy      herself by searching the Internet.

       A.after                   B.until                   C.that                     D.so that

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29.This is a big class, and         of the students are boys.

       A.two third             B.second three        C.two thirds            D.two three

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28.? Are you going to buy a camera?

   ? Yes. But there are so many kinds that I can’t decide          to buy.

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

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27.I feel it hard to keep up with my classmates. But whenever I want to        , my teacher always encourages me to work hard.  

       A.go on                  B.give up               C.run away             D.give back

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26.? Did you have any problems in London?

   ? Yes,          Chinese food like rice, noodles and dumplings.

       A.find                    B.found                  C.finding                D.to find

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25.? Mum, could you buy me a dress like this?

   ? Certainly. We can buy         one than this, but          this.

       A.a better; better than                              B.a worse; as good as

       C.a cheaper; as good as                            D.more beautiful; so good as

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24.? Mary! You are so special that you seem different from other girls.

   ? Everyone in the world is different. So, just        ! It’s the best way of life.

       A.be yourself                                         B.enjoy yourself               

       C.help yourself                                       D.take care of yourself

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23.? Look! What a good garden!

   ? Yes. It          every day.

       A.has cleaned                                         B.is cleaned               

       C.cleans                                                 D.is being cleaned

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22.? I can’t stop smoking.

   ? For your health, I’m afraid you          .

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

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21.You should be out playing           working indoors all day.

       A.instead                B.instead of            C.rather                  D.and

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