School children must be taught how to deal with dangerous .
I recorded the professor’s speech on my cellphone _____ I could listen to it several times later.
—You seem tired, David. —Yes. I _____ all day long and can’t wait to go to bed now.
She has _____ a great deal of money, hoping that she can travel around the world after she retires.
Guang Zhou’s traffic facilities have been greatly improved _____ an advanced new light railway for the Asian Games.
—Your new dictionary is so nice, Lily? —Thank you, Mary. Are you considering buying _____ for yourself?