Ex 10 p 119 put the verbs in brackets in the

Ex 10 p 119 put the verbs in brackets in the correct form, past Simple or would
a. If I ________ have much time, I ______ waste it.
b. If I ________ be rich, I _______ travel around the world.
c. If I ________ be a famous sportsman,
I _______ see a lot of interesting places.
d. If I ________ have enough money,
I _________ buy a computer.