1. The foul air is unfit to breathe.

2. The foul air was slowly suffocating the children.

3. China's notoriously foul air isn't just a potential showstopper for next summer's Olympic Games in Beijing.

4. He opened the window to let out the foul air.

5. When, beijing has harsh Yang Sha weather no longer , have foul air no longer?

6. Is tiny to hike the divine week didn't notice the old eyes after the gentleman gushy of that several silks are foul air.

7. FOUL We opened the windows to let out the foul air.