We are conducting various activities to raise the confidence of our students.

This project involves a great risk.

Smoking increases the risk of carcinogenesis.

He quit smoking tobacco.

Smoking cigarettes is not good for your health.

He has a high risk appetite in investment.

He has a habit of smoking tobacco every day.

He was reading the newspaper while holding a cigar in his mouth.

Smoking while walking in public is a breach of manners.

This food may contain carcinogens.