Every day, too much water _______ in our school. We should save it.
The Yellow River is the second _____________river in our country.
-Would you like to play football with us ? -______________.
-It's nearly 10 o'clock. It's time for you to go to bed. -OK! , Dad.
______she is not in good health, ______she works very hard .
-_________ we go at 7.30 ? -What about __________ it a little earlier ?