问题
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Who _____ over there now?A、singingB、are singC、is singingD、sing
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178 children who are【B13】______in a multidisciplinary researchA.enrolledB.registeringC.ent
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In our Chinese language, children are taught not to address those who are older by th
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Those who get the flu vaccine are surely protected form. the disease.
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Who are at a disadvantage when learning a second language?A.Babies.B.Children.C.Teenagers.
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The following measures are taken to protect children online EXCEPTA.parents will be monito