Present Perfect Progressive 2

Fill in all the gaps with the correct form of the present perfect progressive; then press "Check" to check your answers. If you need help, you can click on the "Hint" button at the bottom of the screen. Note that you will lose points if you ask for a hint.
  1. We (look) for a new school for our children for the past month.
  2. Where have you been? I (try) to contact you for the past hour.
  3. My brother (practice) Taekwondo for ten years. He has a black belt now.
  4. I (not, date) anyone for the past year. I'm a little lonely.
  5. Khadijah (apply) for new jobs since last August. She doesn't like her current job.
  6. Korea (develop) computer chip technology for the past ten years and is now a world leader.
  7. That dog is my sister's. It (follow) her around all day.
  8. Professor Smith (teach) at AUS for 10 years.
  9. We (wait) in the line at the movie theater for 30 minutes.
  10. Has there been a traffic accident? We (sit) on the bus for an hour and going nowhere.