单项选择题
（）I got a first, I'd stay in university and I'd do a postgraduate research degree.
A.As B.Since C.When D.If
单项选择题 If you don't promise to help build more houses, ordinary people（）
单项选择题 If I had more money, I（）travel around the world.
单项选择题 If I get the new job. I（）buy a better car.
