---Guess what! I have got the highest score in the final exam. ---- Great! You ______ worked very hard and put a lot of energy into it.

(2014·郑州一检)—Who is late for class again?—________you ask？Tim，of course.

—It's the office！So you ________ know eating is not allowed here.—Oh，sorry.

—Must I return the book this week?— No, you ____. You can ____ it for 20 days.

--- The task is challenging and demanding. Who do you think can make it? --- _______ my partner have a try? I think she is the right person to do it.