—I worry about ______ enough time and energy to finish that job.—Don’t worry about it. I’ll help you!
He has ____________ friends in the school. He is unhappy.
You must remember that you ______________ feed the fish much.
It’s important __________ fire.
The piece of music sounds __________.
--________ is it from our school to Bridge School? --- Only 15 ___________. You can use my bicycle.