1. The pair of shoes doesn't fit/match me.
The pair of shoes isn't suitable for me.
2. Does it usually cost you 20 yuan to buy a film ticket?
3. I don't think it's easy to make money.
I think it's hard/difficult to make money.
4. I've no idea/I don't know what I can/shall/should buy as a birthday present.
5. 汉译英：
你还想要一些咖啡吗? Would you like some more coffee?
我们的教学楼有5层. Our teaching building has five storeys/stories/floors.