________ by the policy, he decided to build a new factory.

All the citizens, young and old, walked and sang, beautifully _____ in new clothes of all kinds, _______ the success of their football team. 

To learn English well, we should find opportunities to hear English ________ as much as we can.

The teacher wondered whether those ______at the back of the classroom could hear him.

To get into the habit of smoking means ____ one's own life short.