Tom was too exhausted to wake easily______.

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问题 Tom was too exhausted to wake easily______.

选项 A、when once sleeping
B、when once asleep
C、when he was once sleeping
D、when he once slept

答案B

解析 本句的意思是:汤姆太累了,一旦入睡,便很难叫醒他。省略句题:when once asleep是时间状语从句,在这里省略了主语he和系动词was。主句用的是主系表结构,强调状态,A、C、D三个选项均强调“睡觉”这一动作的发生,不能与前面相呼应。
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本试题收录于: 英语题库成考专升本分类
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