1. Keep silent or you’ll wake the baby up.
→ If you
2. Stop talking or you won’t understand the lesson.
→ If you
3. Don’t throw trash into the river, or the water will be polluted.
à If you
4. I don’t know her number, so I don’t ring her up.
→If I
5. I don’t know the answer, so I can’t tell you.
→ If I
6. The water is seriously dirty, so fish die
àIf the water
7. We will get lost because we don’t have a map.
→ If we
8. Susan can be sick because she eats four cream cakes.
→ If Susan
9. Because the weather is not fine, we don’t go on a picnic.
→ If the weather
10. Keep the water clean, and we will have enough water for future use.
→ If we
11. Peter is fat because he eats so many chips.
→ If Peter
12. Water the tree regularly, and it will grow well.
→ If you
13. Unless you finish your homework, you can’t go out tonight.
à If you
14. Unless they were out, they would help me.
à If they
15. He couldn’t win the game unless he practiced more.
à If he
1.If you don't keep quiet, you will wake the baby.
2.If you keep talking, you won't understand the lesson.
3.If you throw garbage in the river, the water will be polluted.
4. If I knew her number, I would have called her.
5.If I knew the answer, I would tell you.
6.If the water is too dirty, the fish will die.
7.If we don't have a map, we will get lost.
8. If Susan eats four cakes, she will get sick.
9.If the weather wasn't good, we wouldn't have had a picnic.
10.If we keep the water clean, we will have enough water to use in the future.
11.If Peter eats too many sweet potatoes, he might get fat.
12.If you water regularly the plant will grow well.
13. If you don't finish your homework, you won't be able to go out tonight.
14.If they go out, they will help me.
15.If he practices more, he will be able to win the game.