1. Since the plane was invented, it (change)_____________________________ the world in various ways.
2. When we arrived home, the children (play)__________________________________ in the backyard.
3. After sending an e-mail to my cousin, I turned off my tablet and (go)_________________________ to bed.
4. I (not pay)_____________________________much attention to the teacher when she suddenly called me.
5. Andy (be)_________________________________absent from class last week because he went to London.
6. This is the first time I (see)___________________________________ Laura enjoy herself so much.
7. I (run)___________________________________ across Kristy when I was checking in at the airport.
8. This microwave is used for heating foods and (bake)____________________________________.
