Remember ________ too much. It’s bad for your health.A. don’t smokeB. not smokeC. not to smoke
Do you have ____ to say about your family?
—Do you spend a lot of time____ computer? —No, but I spend much time_____ doing my homework.
I’m sorry, I_________ the book in my home.
—What do cows eat? —They eat__________ grass.
Black broke his leg. He has just had_______ X-ray examination. _______ doctor said he needed _______ operation.