B. 你没给出划线部分,我猜是 when pigs fly吧.
前面一个人说:你认为Mary会辞职吗?
回答说:嗯,当猪会飞的时候.(事实是猪不会飞.所以这个人认为Mary一定不会辞职.)
C.1. Bobby想表达的是:Ms.Smith的脸很僵硬,不漂亮.
2.Kids say it all:童言无忌,小孩儿有话直说
3. 可以回答:I don't want to look ugly. I'll stop making faces. 我不想变丑.我不再做鬼脸了.
4.It looks ugly, doesn't it?