29.Those battered old trousers of his are a ________ joke to all his friends.

问题描述:

29.Those battered old trousers of his are a ________ joke to all his friends.
A) steady B) stable
C) standing D) persisting

standing joke
n.笑柄
例句与用法:
His meanness has become something of a standing joke.
他的小气已成了经常引人发笑的笑料.