She told Tom ________ make the same mistake again.

Air pollution, together with littering, ____ many problems in our large industrial cities today. 

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

________ as the “first lady of speech”，Dr, Lillian Glass is recognized as one of the world's leading experts on communication skills.

           an important role in a new movie, Andy has a chance to become famous.