Bài 2: Viết lại câu sao cho nghĩa không đổi sử dụng từ gợi ý cho sẵn.

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 clearly, 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 ………………………………………………………………………………….