We often wear windbreakers ___ windy days ___ winter.(on/in/at)

题目

We often wear windbreakers ___ windy days ___ winter.(on/in/at)
It's important for you to wear uniforms at work(用It's important that 改写)
I think.....He didn't do well in the exam(合并成宾语从句）
I want to know........Does your father work in this factory?(合并成宾语从句)
Can you tell me.....Where were you born?(合成宾语从句）
I want to know What did your father do yesterday?(合并成宾语从句)
Could you tell me .....What was the matter with your computer?(合成宾语从句
Could you tell me.....What happened to him last night?(合并宾语从句）

答案

on in
it's important that you wwear uniforms at work
i don't think he did well in the exam.
i want to know if your father works in this factory.
can you tell me where you were born
i want to know what your father did yesterday
could you tell me what was the matter with your computer
could you tell me what happened to him last night