question、
Do you have any question?
你还有其它问题吗?
answer、
I can answer your question.
我能回答你的问题?
zero、
Zero is also a number.
零也是一个数字.
excuse、
Excuse me,may I borrow your pen?
打扰一下,我可以借你的钢笔吗?
a set of
I need a set of machine now.
我现在需要一台机器.