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(单选题)When the people I help write letters of thanks to me. I foun (单选题)—If I were him, I would have.—You______. (单选题)A change to its population policy for the world’s most popul (单选题)It was nearly a week ______ the rescues team located the cra (单选题)—My liquid soap is nowhere to be found. Who ______ have take (单选题)Math is compulsory for all students, while art and music are (单选题)—Where have you been?—I got caught in traffic. Otherwise I _ (单选题)—Could you tell me ______ the difficult problem, please?—Not (单选题)When people work with one mind they can even ______ Mount Ta (单选题)Great attention should be put to ______our environment from