Upper-Intermediate B2 / Lesson 1

Choose the best expressions.

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