用简单英语解释下列句子.
要求:对括号部分做重点解释,写出的句子必须是对原句全句的解释,必须是完整的句子.
(用英语)
1.What's up,John?
2.What does your father do?
3.Success often (depends on) how hard you work.
4.My computer has broken down.
5.Joan agreed to go with me (without hesitation).