— Happy birthday!— Thank you! It"s the best present I________ for.[ ]A. shou

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— Happy birthday!
— Thank you! It"s the best present I________ for.[ ]
A. should have wished
B. must have wished
C. may have wished
D. could have wished

答案

举一反三

Days later, my brother called to say he was all right, but________say where he was.[     ]
A. mustn" t
B. shouldn"t
C. wouldn"t
D. mightn"t

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I ________ use a clock to wake me up because at six o"clock each morning the train comes by my house.[     ]
A. couldn"t
B. mustn"t
C. shouldn"t
D. needn"t

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One of our rules is that every student ________ wear school uniform while at school.[     ]
A. might
B. could
C. shall
D. will

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I"m going to Europe on vacation together with John if I ________ find the money.[     ]
A. can
B. might
C. would
D. need

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I ________ thank you too much for all your help to my son while we were away from home.[      ]
A. won"t
B. can"t
C. can
D. will

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