1.If the tourists throw trash in the places they come to,the places will be polluted.
2.If you are working as a salesman for this company, you might have a lot of chances to travel abroad.
3. Serious eating disorders, which she has experienced recently, may possibly cause long-tern- effects to her health.
II
My brother, who used to drive his car to go to work , has changed to use BRT buses to save energy and protect environments