题目内容
17．-Alice，turn down the TV，please．I ______ on the phone．-Oh，sorry．（ ）
| A． | talk | B． | talked | C． | am talking | D． | haven't talked |
分析 ---爱丽丝，电视声音调小点，我正在讲电话．
---抱歉．
解答 答案：C．结合语境可知电视正在开着，正在打电话，故用现在进行时am/is/are+doing，主语I，故am，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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