Hurry up, ________ you will be late for school.
—It is useful book. —Yes, it tells us how to play football.
Although he is only a _____ boy. He knows a lot.
To help the sick people in the hospital is _____ for me .
-He didn’t go to the concert yesterday, did he? -______.He was busy studying for the tests all day.
My hometown ______ a lot in the past ten years.