№3
1. encourage
2. threatening
3. protection
4. unreliable
5. succeed
№4
1. have you made
2. was doing
3. had made
4. makes
5. are making
№5
1. in _ space
2. what _ good advice
3. the Petrovs
4. on the fifth floor
5. across the Atlantic
6. the USA is situated in _ North America
7. in the Alps
8. _ Paris is the capital of _ France
9. eight hours a day