— If we go on polluting the world, it won’t be fit for us to live in.— ____. We’ve got to do something about pollution.

 –Tony, do remember to send the report to the sales manager! —________.

----Do you need the electric dryer?----     . 

---My mother is ill in hospital.   ---______

—Cheap food means that everyone can afford to eat well．—___．But what about the long-term effect on the environment?