题目内容
【题目】Ought you_______ hands before having meals?
A. to wash B. wash C. washing D. not wash
【答案】A
【解析】你应该在饭前洗手吗？ ought to do应该做，否定形式是ought not to do。结合句意，故选A。
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题目内容
【题目】Ought you_______ hands before having meals?
A. to wash B. wash C. washing D. not wash
【答案】A
【解析】你应该在饭前洗手吗？ ought to do应该做，否定形式是ought not to do。结合句意，故选A。