-- Mum, must I stay there the whole day?-- No, you ______ . You ______ come back after lunch, if you like.A. mustn't; canB. needn't; mustC. needn't; may
—Where is your brother? —He has gone to Beijing. He back in three days.
—Ann, I am worried I’m getting fatter. What shall I do? —I think you should eat ________ food and do more exercise.
—Why don’t you buy the bike, Mary? — It’s too expensive. I can’t it.
they are twins, they don’t look the same at all.
The mother walked into the room in order not to wake up her baby.