—Can I pay the bill by check? —Sorry, sir．But it is the management rules of our hotel that payment ____ be made in cash．

—Could I invite my friends to my birthday party?—Sorry, you ______.

 — Can we leave the classroom now?— No, you ______. You ______ to leave until the bell rings.

—______ did you sleep last night?—Only five hours. I stayed up late to do my homework.

 ——Can I get out in the daytime?——No. The school rules state that no child _____ be allowed out during the day, unless accompanied by an adult.