Rewrite the sentences

----- Nội dung dịch tự động từ ảnh -----
Rewrite the sentences
1. The children had finished their homework before they went to bed.
After
2. We had dinner then we went to the cinema.
Before
3. After she had explained everything clearly, we started our work.
By the time
4. My father had watered all the plants in the garden by the time my mother came home.
• Before