题目内容
19．---Shall we go shopping now？---Sorry，I can't．I ______ my shirts．（ ）
| A． | wash | B． | am washing | C． | washed | D． | have washed |
分析 --我们现在去购物好吗？
--抱歉，我不能，我在洗我的衬衫．
解答 答案：B．
结合语境推测句意是"--我们现在去购物好吗？--抱歉，我不能，我在洗我的衬衫．"，由此判断设空处的动作在说话时刻正在进行着，所以用现在进行时．现在进行时的构成是：主语+am/is/are+动词的现在分词； 故答案为B．
点评 本题考查了动词的时态．做题时，一定要特别关注有关的时间短语，这是判断句子时态的标志．在没有时间状语的情况下可以联系上下文根据语境来做出正确判断．
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