Why not try your luck downtown,Bob?That's___the best jobs are.

问题描述:

Why not try your luck downtown,Bob?That's___the best jobs are.
为什么选where

“Why not try your luck downtown”意思是:为什么不到市中心去碰碰运气呢?
这里的先行词是“downtown”也就是市中心,强调的是“downtown”这个地点
所以应该用“where”连接.