of the workers in this factory is about two hundred. of the workers are working hard.
—______ hard Tony is working! —Yes. We should learn from him.
It's 9:30 pm, children! ______ is time to go to bed.
Attention please. The plane will ______ in five minutes.
There are many flowers and trees on ______sides of the Century Road.
—Do you know Tom? —Sure, we have ______in the same village for many years.