rather than 和 more than

题目

rather than 和 more than
I'd try even if I may fail _______ sit there worrying in time of trouble.
a rather than
b more than
选A.为什么B不行?要怎样改,B才能通：
“即使我可能会失败我也要试一下,总比坐在这里担心强.”

答案

even if I may fail 是假设的条件从句
worrying in time of trouble是sit there 的伴随状语
主句I'd try rather than sit there .
more than 强调次数上的多,怎么改就不清楚了.