题目内容
15．It's five o'clock．My children______（ ）| A． | sleep | B． | sleeps | C． | are sleeping | D． | is sleeping |
分析 五点了，我的孩子们正在睡觉．
解答 答案：C．结合It's five o'clock可知表达的是正在进行的动作，故用现在进行时be+doing，主语my children复数，故答案是C．
点评 可用来表示现在进行时的时间状语，常用的有：now，this week，at the moment，right now 等；或者告诉你一个准确的现在时间，或者用look，listen（常用于句子的开头，表示提醒听者注意正在发生的事情）
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