单项选择题
He is over fifty, but he looks as though he（）only in his thirties.
A.were B.is C.will be D.has been
单项选择题 （）I got a first, I'd stay in university and I'd do a postgraduate research degree.
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.
