Fill in the gaps with right form of the given verbs.

1. If he hard enough, he will pass the test. ( study )
2. If it doesn't rain, the students football in the playground. ( play )
3. Jane home early if she isn't very busy at work. ( come )
4. Dad will be pleased if I his new car. ( wash )
5. If we more, we will help our planet. ( recycle )
6. If we don't use our cars all the time, the atmosphere cleaner. ( be )
7. If you a shower instead of a bath, you will save a lot of water. ( have )
8. If the weather good enough, we will go for a walk in the park. (be )