Upper-Intermediate B2 / Lesson 1

Choose the best expressions.

1. I lost my car keys. Do you see Have you seen Have you been seeing them anywhere?
   
2. John has collected collects is collecting coins for a hobby.
   
3. Alan is on vacation. Great! Where has he been going does he go has he gone ?
   
4. Top government officials leave are leaving the country because of the threat of war.
   
5. Although Mary says she is feeling better, I think she still loses is still losing weight.
   
6. Where have you been? Do you play Have you played Have you been playing golf?
   
7. My sister is a model. She has appeared has been appearing in several magazines.
   
8. My father locks has locked is locking all the doors and windows before we go to bed.
   
9. The travel agency currently sells has been currently selling is currently selling airline tickets to Spain for half price.
   
10. Sorry I'm late. Don't worry. We haven't been waiting aren't waiting don't wait long.