1. 2. Sha job. 3. І (come) early if you (stay) in London if she (want). (get) a (buy) a new dress if I (have) enough money.

It seems like the sentences are mixed up. Here is the correct order:

1. I will come early if she wants.
2. She will get a new dress if she has enough money.
3. Sha will buy a new dress if she gets a job in London.