听力请教：at least have put up

录音（MA）Oh,no. Look at this red paint on my new jacket. Why did the school paint that railing anyway?

(WA) Oh，that’s too bad! You’d think they might at least have put up a sign.

选项

(A)   she doesn’t like the color of the man’s jacket

(B)   the railing didn’t really need to be painted

(C)   the school could easily have prevented the problem

(D)  The man should have been more careful.

最后一句：你觉得他们应该至少放一个标志在那里。

btw:楼主gg，下次如有听力问题，请发贴到toefl机考区/综合交流区，谢谢合作！