题目内容
20．-We could invite Millie and Simon to my birthday．-Yes，_______？（ ）
| A． | what for | B． | why not | C． | what | D． | why |
分析 --我们可以邀请Millie和Simon来参加我的生日．
--是的，为什么不呢？
解答 答案：B what for，为了什么；why not，为什么不； what什么； why为什么．根据上文We could invite Millie and Simon to my birthday．我们可以邀请Millie和Simon来参加我的生日．可知是提建议，推断下文可知应该是：发表自己的看法．应该用why not，故选：B．
点评 主要考查句型，做此类题目，一定注意答语的句意，根据答语推测所要问的内容，然后选出所需要的句型．本题主要考查why not，为什么不．
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