All of the sentences should be in Type 2 .
1. I (travel) around the world if i (have) a lot of money.
2. If you (listen) to the teacher carefully , you (get) better marks.
3. If he (work) harder , he (be) richer.
4. If i (be) the richest man in the world , i (help) the poor.
5. I (write) to him if i (know) his address.
6. You (understand) it if you (read) it carefully.
7. They (give) you the job if you (wear) a suit.
8. I (do) it if I (know) how to.
9. If he boxer (be) more courageous , he (win) the match .
10. It (be) wonderful if your brother (be) here.

1 would travel-had2 listened-would get3 worked-would be4 were-would help5 would write-knew6 would understand-read7 would give-wore8 would do-knew9 were-would win10 would be-were