1. This notebook belongs to Jane. - This is Jane's notebook.
2. These suitcases belong to our guests. - These are our guests' suitcases.
3. This bedroom belongs to my son. - This is my son's bedroom.
4. These keys belong to Mark. - These are Mark's keys.
5. This painting belongs to Picasso. - This is Picasso's painting.
6. These poems belong to Pushkin. - These are Pushkin's poems.
7. This helicopter belongs to our boss. - This is our boss's helicopter.
8. These dictionaries belong to the students. - These are the students' dictionaries.
25. air poluton, endangered spicies, to drop litter, a set of rules, unleaded petrol, rubbish bags, pollution levels, logging companies, to grow crops, build roads
26. 1. to shout on sb. 2.late in night. 3. advertised in a paper. 4. look forward for sth. 5. cures to cancer. 6. millions of kinds of exotic animals. 7. to drop litter on beaches. 8. keep off the grass
27. 1. cut down. 2. survive 3. protect. 4. rare. 5.reduce
2. 1. mustn`t. 2. mustn`t. 3. must. 4. mustn`t. 5. mustn`t. 6. must. 7.mustn`t. 8. mustn`t
4. 1. has been. 2. has gone. 3. has gone. 4. has been. 5. has gone
5. 2. something. 3. anywhere. 4. nothing. 5. anyone. 6. somebody. 7. nobody. 8. anywhere
Объяснение: