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—______are you staying there?
—Just for two days.
A.How longB.WhenC.How oftenD.How many

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如图,一质量为60 kg的同学表演“轻功”,他将4只充满气的相同气球平放在木板上,气球上放一轻质塑料板.在这位同学慢慢站上轻质塑料板中间位置的过程中(球内气体温度可视为不变),则球内气体               (   )
A.压强变大
B.压强变小
C.体积变大
D.体积变小

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— You look tired, you should have a good rest for _______ days.
—               That sounds good.
A.a fewB.fewC.littleD.a little

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If you eat     chocolate, maybe you’ll be fatter(更胖的).
A.too muchB.much tooC.too manyD.so many

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     do you go to the movies?
—Hardly ever.
A.How longB.How oftenC.How many timesD.How soon

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Vegetables are good      our health, so we should eat them every day.
A.atB.forC.inD.with

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—_________is very interesting to swim in the river in summer, but it’s dangerous.
A.ThisB.ThatC.ItD.He

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—I’m tired and stressed out.      
—You should ___________.
A.study hardB.go to the dentistC.listen to light musicD.stay out late

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—What are you doing for your vacation?
—________________________.
A.I’m going hiking.B.I went to the beach.
C.I often go to the mountain.D.I like going bike riding.

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My sister is only two years old, and I have to _____ her on Sunday.
A. look for     B. look after     C. look like      D look at

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