— May I do the homework tomorrow?一 No, you______. You should hand in before class tomorrow. A. mustn't B. needn't C. couldn't
His father encourages him________up math.
—I’d like you to tell me something about Shennongjia. —I’m sorry,but neither Jack nor I________there.
Hello,everyone.This is our new classmate.Let her introduce________to you.
He gave________dollars to charities.
It is her dream________a famous singer.