—I have a ______. What should I do?—You should see a dentist.
-- How can I ______ well with my lessons, Dad? -- Practice makes perfect.
-- I hope you don’t mind my opening the window. -- ______ It’s much too hot in here.
Bob promises to join in the football match ______ he has to help his parents on the farm.
-- Did you find the small village yesterday? -- Yes, without any difficulty, for it has ______ changed over years.
-- What time do you expect me back, Mum? -- Say, ______half an hour.