She has the flu(流感), so she can’t come to the party . .
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.