—You look so tired. —Yes. The loud noise upstairs stopped me        the whole night.

The school rules state that no child ___ be allowed out of the school during the day , unless accompanied by an adult .

--   do you spell ring?       --________. 

---Is the girl in the red skirt your sister?---No. It _______ be her. She has flown to Australia.

—Must we get everything ready before we go to the countryside this summer?    —No, you _______.