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最佳答案：My sister doesn't know how to use computer.
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最佳答案：my sister can't /couldn't use computer.
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最佳答案：The spokesman reiterated that they would never renounce the use of force to reso
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最佳答案：1.Lily cannot dance at all2.In my way home,I meet Ann3.He can use the computer w
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最佳答案：1.If he and I are disagreeing about the matter,first of all,I will take his side
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最佳答案：The dog has nipped your one, you cannot instead nip its one