题目内容
19. You make any noises, for the Senior Three students are taking their monthly test.
A. cair'l B. needn't
C. mustn't D. won't
19. C考査情态动词的用法。句意：你不得发出任何响声，因为高三的学生在月考。mustn't禁止，不允许。
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题目内容
19. You make any noises, for the Senior Three students are taking their monthly test.
A. cair'l B. needn't
C. mustn't D. won't
19. C考査情态动词的用法。句意：你不得发出任何响声，因为高三的学生在月考。mustn't禁止，不允许。