Give the correct form of the verbs to complete the passage.
1. In some areas water has to be boiled to ________ it. (pure)
2. He examined the parcel ________, as he had no idea what it could be. (suspect)
3. How do you ________ the real painting from the fake one ? (different)
4. Don’t worry about the volcano. It’s been ________ for years. (act)
5. Leisure habits won’t change much in the ________ future. (see)
6. The conditions in the man’s prison were ________. (human)
7. I object strongly to the ________ of sport. (commerce)
8. A list of ________ events for the autumn is being prepared. (come)
9. Most people who work feel that they are ________. (pay)
10. They frequently ________ the traffic as they march through the streets. (mobile)