7. Find the third person singular. 1 Thide - he 5 I walk-it
2 we hunt - it 6 you use - she
3 they live - he 7 they carry - he
4 you eat - she 8 we wash - he ​

Each summer the uk welcomes children from more than 45 different countries and many of them come to dean close year after year. dean close (has been educating) students from around the world for more than a century, and has an international reputation for academic and sporting excellence.(our) summer school provides a safe, stimulating environment for international students aged 11 to 16 to learn english, experience life in the uk and make strong friendships.every student (recieves) 15 hours of lessons each week from qualified and imaginative teachers.in the afternoons two activity sessions take place with up to six different choices in each session. evening activities give students the opportunity to relax after a long day and get (to know) one another in a relaxed, multi-national environment.a visit to the uk would not be complete without a trip to london. students (will have) time to see the sights and absorb the atmosphere as they spend their last night in this fabulous city.all our students enjoy two day trips each week, visiting cultural sites as well as much (more cheerful) attractions. all of the trips last a full day, so there is plenty of time for the students to experience everything.we also offer a range of fun activities with our english plus program — these (are not included) in the basic course price, but can be a great way to learn new skills while practicing english.

Many wildlife habitats will be destroyed if man keeps polluting the environment.
2. If we dump all sorts of chemicals into rivers, we will not be able to swim in them in the future.
3. If we do not stop cutting down so many trees, we will endanger our oxygen supply.
4. Soon the Earth’s resources will be exhausted if the human population continues to grow.
5. If everybody continues to use aerosols and CFCs, the hole in the ozone layer will get bigger.
6. If the sun radiation can’t escape into space, Earth’s temperature will increase steadily.
7. If the global temperature rises, sea levels will rise too.
8. We’ll threaten our own existence if we do not cut down on waste rapidly.
9. People will run out of drinking water one day if they do not use it more rationally.
10. If he wants to help the planet, then he has to change his habits