46. What do you mean by “paraphrase”?

45.What’s the matter with you?

44.Listen! There’s a knock on the door.

43.He lent a good book to me just now.

42.Lastly we elected him to be our monitor.

41.He’s a good jumper.

40.Air is invisible.

39.Tom is keen on sports.

38.How interesting to play with him!

37.I have no idea where to go.