理工类辅导资料：常见句型分析
83.When it comes to…… 谈到……/涉及到……
When it comes to English， hes an expert.
在英语方面，他是个专家.
84.You are expected to…… 你要/应该……
You are expected to work late tonight.
你今晚要加班.
85.You are supposed to…… 你应该……
You are supposed to have finished reading this novel by now.
到现在你应该看完这本小说了。