----__________ hard work you have done! ---- It’s very kind of you to say so.
________I smoke here ?----No. you can’t.
.---______you swim ? ----Yes, but I’m not good at swimming .
Billy is a nice boy . he knows a lot , but he never ________.
Look ! A boat is passing ________the bridge .
He set off _______such a hurry that he left the ticket at home .