Fill in the gaps with the correct present tense.
1. How long (you/know) Simon?
2. The students (finish) their exams. They're very happy.
3. Julie (sleep) now.
4. We (wait) for you for twenty minutes!
5. (you/finish) your homework yet?
6. They (learn) English for six years.
7. I am tired. We (walk) for more than an hour. Let's stop and rest for a while.
8. David wants to be strong and healthy that's why he (jog) every morning.
9. Sara, my next door neighbour, has a car, but she (not/ use) it very often.
10. Listen. The children ( watch) videos.