2．. The little boy won’t go to sleep his mother tells him a story. A. or B. unles——青夏教育精英家教网—

摘要：2．. The little boy won’t go to sleep his mother tells him a story. A. or B. unless C. but D. whether

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．（全国卷I 30）. The little boy won’t go to sleep ______________his mother tells him a story.

A. or B. unless C. but D. whether

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