2. We should all protect our surroundings as we don't want to create an environmental catastrophe.

3. The girls were deeply affected by that sentimental movie.

4. It takes me a long time to put aside enough money for a nice vacation, so such trips are few and far between for me.

5. Things are going well. In fact, business is blooming

6. At the end of the winter, the price of winter clothes in the shop usually drops

7. The shop assistant was totally bewildered by the customer’s behavior.

8. Viking sailors landed in North American just under a thousand years ago

9. Subsequent events proved me wrong

10. My little brother would spend an inordinate amount of time in the shop, deciding exactly which Anime figures he was going to buy. 

11. John’s got very mixed feelings about taking on more responsibility at the moment.

12. The notice should be put in the most conspicuous place so that all the students can be well-informed.

13. For calculating a calendar, it is convenient to use the tropical solar year.

14. The organization was established in 1999 in the UK.

15. Everything was in a thorough mess