The rainforests can give us many _________(use) things.
Don’t keep your friends _________ (wait) so long.
Han Mei spends two hours _________ (practice) English every day.
When you’re out, You’d better take care of ________ (oneself).
If you want to be thinner, you must eat _______ (little) food and take more exercise.
Running can help you keep _______ (health).
Ann is going to go _______ (skate) with her classmates tomorrow.
Can you tell me your reason for_______ (leave) home in a hurry?
He is going away for at _______ (little) a week.
Take care of your_______(tooth) or you’ll have a toothache.