-We __________ play football on the busy road, it’s dangerous. -I agree with you. We should keep safe. A. needn’t B. mustn’t C. may not
He is finishing _____ a funny story. And he is thinking about _____ to Beijing for a vacation.
David has a stomachache. _____ .
Mr. Brown is 70 this year. Although he is very old, ____ he works very hard.
–How often do you wash your hair?
Jim often goes to school _____ bike. But today he goes to school _____ the school bus.