I. Rewrite the sentences
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
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Sinh Học lớp 12
