1. in fear of 担心
同义替换：
afraid for the safety of
造句：
We are in fear of more snow.
我们怕再下雪。
2. feed (sb.) on sth.
靠吃…, 用…喂养
造句：
sheep feed mostly on grass
羊以草为主食
3.be fed up with 厌烦, 腻了
同义替换：
be unhappy, tired about sth. dull
造句：
People get fed up with anyone who brags all the time.
总是大吹大擂的人到哪里都遭人厌。
4.feel like 想要
同义替换：
have a desire for
造句：
When the weather's hot and humid, exercising may be the last thing you feel like doing.
当天气闷热潮湿时，你最不想做的事可能就是锻炼。
5.fill in 填写
同义替换：
fill out
真题重现：
Such an account can be referred to in filling out standard application blanks.
这种说明可以在填写规范的申请表时参照。 (1996阅读)
造句：
Please fill in the receipt in duplicate. 请一式两份填写这张收据。
