It’s wise to forget things which aren't worth .
A. being remembered
B. remembering
C. to be remembered
D. to remember
网友回答
A. being remembered
(答案→)B. remembering
C. to be remembered
D. to remember
解析：考察固定句型。Be worth doing值得做某事；用主动形式表示被动含义。结合句意可知B正确。句意：忘记那些不值得记住的事情是很明智的。