. — They suggest the number of cars should be limited to stop air pollution. — ____, the idea is not practical.

Only_______ of the students_______ passed the English exam.

The teachers ________ on the blackboard with chalk in the future.

Who would you like to see you off at the airport?— ______________. Just say “goodbye” at home.

As the busiest woman in the village, she made _____ her duty to look after all the other people’s affairs in that village.