【各种问题】

1.What's that smell?  这是什么味儿?
2.What's that noise?  什么声音?
3.What is this line for?  这是排什么的队?
4.What are you up to?  你忙什么呢?
5.May I ask you a question?  我可以问一个问题吗?
6.Who does this belong to? 这是谁的?
7.Where are you headed?  去哪儿? ​​​​