问题
选择题
The socks are so ______ that they can't be mended any more.
A.used up
B.worn out
C.tired out
D.broken out
答案
答案:B
use up“用完,耗尽”;tire out“使十分疲劳”;break out“(战争、火灾等)突然发生,爆发”;wear out“穿破,用坏;克服;消磨;疲劳”。句意:这些袜子穿坏了,不能再补了。根据句意知应选B项。