At 13,Samuel received a training course in drawing for three years,________ he got a good opportunity for further development.
Driving a car is not so difficult as you imagine, if you _____ the rules.
Remember not to ____ when you enter the room.
Suddenly the small boy stopped and bent down as if to _____ something.
Would you please turn your radio a little? I’m tired now and feel like sleeping.
Peter is my close friend, who can be what he promises.