thousands of people work in san francisco.many of them __the bay

问题描述:

thousands of people work in san francisco.many of them __the bay
A across
B on
C along
D over

我认为是along
across是在什么什么对面.
而旧金山对面没有海湾.
我还特意看了地图呢.
只有沿着它有个california海湾.