—Don’t worry. Your father is coming to help you.—__________ he doesn’t come?
---Excuse me. Where is your teachers’ office? ---________, sir. ---Thanks a lot.
Simon likes playing ____ football but Sandy likes playing _____ piano.
________ is fun. I like ________.
It’s 9:00 now. It is time for us _____ sports.
--- Excuse me, what is on the wall of the classroom? --- Oh, ______ a blackboard , two doors and five windows.