题目内容：

四道英语单项选择
1.The path led_____the trees to the river.
A.across B.through C.by D.over
2.I was the only one of the people in my office____invited.
A.which was B.that was C.that were D.which were
3.Modern equipment and no smoking are two of the things I like_____working here.
A.with B.over C.at D.about
4.Some people choose jobs for other reasons_____money these days.
A.for B.except C.besides D.with
求解析.给分.