giúp mình với plsss hứa vote 5 sao 1. David had gone home before we arrived. - After 2. We had lunch then we took a look around the shops. - Before 3. The light had gone out before we got out of the office. - When 4. After she had explained everything dearly, we started our work. - By the time 5. My father had watered all the plants in the garden by the time my mother came home. - Before

1. David had gone home before we arrived.

->After David had gone home, we arrived.

2. We had lunch then we took a look around the shops.

->Before we had lunch, we took a look around the shops.

3. The light had gone out before we got out of the office.

->When we got out of the office, the light had gone out.

4. After she had explained everything dearly, we started our work.

->By the time we started our work, she had explained everything dearly.

5. My father had watered all the plants in the garden by the time my mother came home.

->Before my mother came home, My father had watered all the plants in the garden

After David had gone home, we arrived.

before we had lunch, we took a look around the shops.

When we got out of the office, the light had gone out.

By the time we started our work, she had explained everything dearly.

Before my mother came home, My father had watered all the plants in the garden