Please tell me ___________ .
--- Can I play football for some time, Mum? --- You can, if your homework____.
--- The windows are broken and need to be repaired. --- I think so. They can hardly _________ the cold now.
--- I want to know if I _________ smoke here. --- No, you ___________. Can’t you see the sign “NO SMOKING” there?
--- Hi, Ann. How can you improve your English so much? --- Oh, nothing difficult. The _____ you work at it, the _____ progress you will make.
--- Did Jack come back early last night? --- Yes. It was not yet eight o’clock ______ he arrived home.