Rewrite the following sentences

giúp mình với
1. Unless they were absent now, they would meet the head master.
→ If.

2. Unless he cleaned up the car now, his boss could ask him to do this.
= It

3. IfT didn't know the number, I would not ring her up.
= Unless

4. If Peter didn't study hard, he could nos get good marks.
=> Unless

5. If my sister didn't have a terrible headache she wouldn't be absent from her class.
→ Unless

6. Unless he refused everything, he would lose his family.

Unless 1 saved my money, someone would take it.