1.He doesn't have the money and he cannot afford a new car
=>If..he had money, he could afford a new car .....
2.The match can be cancelled because it rains heavily.
=>If. it rains heavily,The match can be cancelled .....
3.I am poor, I can't travel around the world .
=>If..i'm not poor, I will travel around the world . ......
4.I don't have a lot of money , I can't help all people.
=>If..i had a lot of money, i could help all people.....
5.I am very tired so I can't finish my work.
=>.If I wasn't very tired, i would finish my work. .....