This is empty glass. Would you please give me full one.
Mum often ________ us not to play in the street.
Don’t read ________the sun. It’s bad for your eyes.
If you are tired, you can ________ a rest.
The school has eight _______ students.
-----I have to go now. -----It is raining .Don’ t ______ until(直到) the rain stops.