请教两道听力题

1）Mh,no.look at this red paint on my new jacket.why did the school paint that rail any way?

Wh,that's too bad.you'd think they might at least put up a sign.

what does the woman imply?

答案：the school could easily have prevented the problem.

讨论：the railing didn't really need to be painted.

2）Wur little brothers are so differnt i was afraid they wouldn't like eac other at first.

M: they really hit it off right away,didn't they?

答案：they get along with each other.

这题对答案没有疑问，但是完全看不懂第二个人的回答，哈意思a?

请多指教哦～～

因为查了一下，hit sth off是用语言等简洁而

精确描述某事某人的意思，所以放在这里不知道

哈子意思。

查了一下,hit it off 是和睦相处,一件相合的意思.

但是第一题我也不明白啊,有谁来解答一下啊!

这里用的虚拟语气they might at least... 他们至少也应该...,换言之如果这样的话，就不会沾上了，这样的事也就不会发生了。

再请问一下楼上的大侠，you'd think 放在这里怎解？

是理解成“你现在肯定想学校至少也该做个标示”吗