Make conditional sentences: Keep silent or you’ll wake the baby up

Exercise 2: Make conditional sentences:
1.     Keep silent or you’ll wake the baby up.
 →If  ……………………………………………..…..………
2.    Stop talking or you won’t understand the lesson.
→ If …………………………………….....….…….
3.     I don’t know her number, so I don’t ring her up.
→ If …………………………………….....….……..
4.     I don’t know the answer, so I can’t tell you.
→ If …………………………………………….………..
5.     Peter is fat because he eats so many chips. →……………………………………………………...…..