1.Who are sitting in the classroom?

2.Why does Linda have to stay in bed?

3.Where do my classmates like camping?

4.When did your father go to work?

5.When did you last see him?

1. can't you do better than that ?
=> is that the best you do ?
2. why don't we go shopping this weekend ?
=> shall we go shoping this weekend?
3. I don't want to do anything too enerdetic today
=> I don't feel enerdetic to do anything today.
4. it isn't necesarry for students to wear uniforms on Wednesdy
=> students don't need to wear uniforms on Wednesday
5. she teaches English well
=> she is a good English teacher
6. she feels comfortable to watch TV
=> Watching TV is comfortable
7. my new jeans are more expensive than yours
=> my new jeans aren't cheaper than yours.
8. we spent a whole day looking for these old pictures

=> it took us a whole day to look for these old pictures
9. when did you buy the coputer ?
=> how long is it since you bought the computer ?
10. what is the distance between your hometown and your school ?
=> How far is it from your hometown to your school?