Choose the correct option.

1. Plants die if you ... them. 2. If I see Tim, I ... him to the party. 3. If you ... me, I would have helped you with the gardening. 4. If you finish your homework, we ... out. 5. If I were you, I ... the oven before you use it. 6. If I had known it was your birthday, I ... you a present. 7. If you ... more, you would be a lot healthier. 8. If you ... hard, you will get good grades. 9. If he ... to the party, he would have had a great time. 10. If I ... home earlier, I would have time to cook.