does it take you to watch TV —About forty minutes.

.John is the only one of the students in the class that never______ a mistake even when it is pointed to him.

I’m very tired.– We really should stop _____.

It’s smoggy these days. That’s terrible!—Yes, I hope to plant trees. ______ trees, ______air pollution.

This is the best chance for you to go abroad. Don’t ________.