We have so many tasks which need to do in all phases of medicine, public health and industry.()

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考题 9． _______you _______ stay at home today?A． Do ; have toB． Must; have toC． Have; toD． Do ; must

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考题 —I'd met Smith several times before.—So (have) ( ) I.

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考题 That is the reason()we’ve lost so many customers.A、 whyB、 thatC、 which

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考题 A:I prefer watching TV. B:So( ) I.A. haveB. amC. do

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考题 ________ can be done ________ been done. A.All that...hasB.All that...haveC.All...hasD.All...have

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考题 36． We ___________ keep the new traffic law and learn how to protect ourselves．A．may．B．shouldC．canD．need

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考题 You look（） What（）you（）?Atire；did；doBtiring；have；doneCtired；do；doDtired；have；been doing

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