________he recites 10 words every day and his English has improved greatly.
Tom ______to paint the fence but he got his friends to do it for him.
Some of us remain________at our computer for hours every day,forgetting moving our body.
The tanker,which was full of petrol,________and gave off heavy and dark flames the moment a truck knocked into it.
She drove so fast at the turn that the car almost went ___ the road.
We believe ________ we can find out the wonder drugs to H7N9 bird flu.