Rewrite the sentences

----- Nội dung dịch tự động từ ảnh -----
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. know her number or you won’t ring her up.
→ If you _________________________

4. know the answer or you can’t tell me.
→ If you _________________________

5. Be careful or you may break the vase.
→ If you _________________________