Question

I _____ her not to walk on the thin ice but she would not listen to me.

1. A.
   warned
2. B.
   persuaded
3. C.
   suggested
4. D.
   noticed

Answer 1

A
warn sb. (not) to do sth.警告某人（不）做某事。Suggest不能接sb. to do sth。persuade sb.(not) to do sth.说服、某人（不）做某事；本题中不能选D. persuaded, 因该动词强调行为的结果。从逻辑上讲，既然“说服了”，那么与she wouldn't listen to me就前后矛盾了。如果把句子该为：I tried to persuade her not to walk on the thin ice but she wouldn't listen to me.(我极力劝她不要在薄冰上走，但她不愿听我的话。)，那么就符合逻辑了。
[注意]warn sb. of sth.警告某人有......。wear out本题中意指（become useless form continued use of wear）用坏，穿破，如：The machine will soon wear out.(这机器即将用坏。)come to and end(结束)，put ... to use(投入使用), use up(用完)， come into use(开始投入使用)。