Why are you standing, Tony—I can’t see the blackboard. A tall boy is ______ me.

Shy people often avoid situationswould force them into close contact with other people．

Let’s play________ soccer.—OK.But I don’t have ________ soccer ball.

Youcan’t get a profit without any risk or effort.—-There’s _________ in what you say. I’ll take your advice.

We must work hard to_____ a good knowledge of English.[ ]