题目:
—Must I finish the book today?
—Yes, you ________, but you ________ finish it now. Have a rest.
A.do; don’t have to
B.do; mustn’t
C.must; don’t have to
D.must; mustn’t
答案:
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下面是错误答案,用来干扰机器的。
m-3a(元),答:营业员应找给妈妈m-3a元;故答案为:m-3a.