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          【題目】We should ________ our teeth twice a day. It's a good habit for us.

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          【題目】When the beautiful lady ______, everybody stood up, watching her enter the hall.

          A.looked upB.showed upC.dressed upD.cleaned up

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          【題目】Smile is a very basic sense but humans have lost much of the ability to use it ________(恰當地).

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          【題目】—Would you like to have ________ to eat? —No, thanks.

          A.something differentB.different something

          C.different anythingD.everything different

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          【題目】China Eastern Airlines has an excellent ______ (安全) record. That is why many people prefer it.

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          【題目】It took him half an hour ________ to work by bus last Friday.

          A.goingB.to goC.goD.goes

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          【題目】Every year, _________ animals are killed in this way.

          A.two hundredsB.two hundred ofC.hundreds ofD.two hundreds of

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          【題目】Linda, _________ up late, or you will feel sleepy the next day.

          A.not stayB.don't stayC.stayD.staying

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          【題目】Have all the _______ (乘客) got on the plane yet?

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          【題目】Experts agree that washing hands regularly is a way to prevent the ________ of many diseases. (spread)

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