题目内容
9. I didn' t hear the telephone ring last night. I at that time. (asleep)
昨晚我没有听到电话铃声。我那个时候一定是睡着了。
9. must have been asleep考查情态动词用法;ibe asleep 表示睡着的状态。对过去动作的推测用musthavedone
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题目内容
9. I didn' t hear the telephone ring last night. I at that time. (asleep)
昨晚我没有听到电话铃声。我那个时候一定是睡着了。
9. must have been asleep考查情态动词用法;ibe asleep 表示睡着的状态。对过去动作的推测用musthavedone