is the population of your factory—It has a population because it’s a new factory.

There used to ________ a clean river inthe village, but now it’s dirty.

1Everyone needs to have atleast eight hours’ sleep a night, so you shouldn’t ______ too late.

_____ of their bad habits, the boys switched from being dependent on their parents to _____ for others.

Mrs. Huang often speaks to foreigners, _________ –Yes, she wants to practice her spoken English.