5. Before my father taught me how to use the computer, he bought one for me.
6. After I HAD read my favorite book, I went to bed.
7. Nick is reading a novel while Jack is reading a cartoon.
8. Whenever my sister makes a mess, my mum makes her weed the garden.
9. After the tornado hit, there were only a few houses left standing.
10. When the bell rang, everyone raced out of the classroom.

Before - trước khi

After - sau khi

While - trong khi

Whenever - bất cứ khi nào

When - khi