1. Teachers have gone on strike .......... the past, so this situation is not unusual.

2. I try to buy fruit and vegetables that are .......... season.

3. We're going .......... holiday next month.

4. .......... the summer I stayed with my grandparents.

5. I happened to meet an old friend __________ town.

6. I bought many things __________ my stay in New York.

7. His knowledge ......... French was not that good.

8. They can't afford very much because they must live .............. the father's small pension.

9. All of the carpets on display were made ........... hand.

10. My sister is .......... work right now so you can't reach her.

11. The unexpected success of the company took us .............. surprise.

12. We had to adapt ......... the cold weather so we brought a few warm clothes with us.

13. On your left you can see one of the biggest libraries ......... the world.

14. She always looks ____________ herself in the mirror.

15. Students are protesting against increasing tuition fees ......... universities.

16. Irish people are famous ............. their hospitality.

17. Mary’s in the kitchen looking ........... her car keys.

18. We often go skiing ............. spring because the days are longer.

19. he attractive woman smiled ........ me. I think she liked me.

20. It’s freezing. It must be 20° .............. zero.