1. our main aim is discouraging young people from smoking.
2. they don't completely realize the damage that it causes to their health.
3. this ad is promoting its product
4. there are respective rooms for senior and junior officers
5. she was lying, she lied me about her age
6. he was lying in bed since this morning/ he has been lying in bed since this morning
7. provide students with more information about smoking
8. unlike a single advertisement. an ad compaign is an organized progamme of advertisements using various (?) to reach a particular audience