—Mum, may I go out to play football for a while? —______. You need some exercise.
His sister left home in 1998, and_______ ever since.
Sam _____ some knowledge of the computer just by watching others working on it.
-----Have you been wasting time on computer games again? ----- _______. I’ve been studying a lot and I need a break.
When I got on the bus, I_____ I had left my wallet at home.
Don’t leave her_____ outside in the rain.