—Can I tell Peter about the news?—No, I don’t want anyone else to know it. You _______keep it to yourself.
—Will they send their homework _____ the teacher _____ email?—Yes, they will.
---________ did you spend on this book? ---Ten yuan.
Tom likes _____ but he _______ yesterday.
There are _________ people in the zoo.
There is ________ food here . We don' t need to buy any.