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题目
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—Must I clean the blackboard now?    —No, you _______ clean it later.
A.mustB.needn’tC.canD.shouldn’t

答案
B
解析
对于must 引导的一般疑问句,否定回答,用needn’t。故选B
核心考点
试题【—Must I clean the blackboard now?    —No, you _______ clean it later.A.mustB.nee】;主要考察你对词法等知识点的理解。[详细]
举一反三
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