44.　 It’s bad manners to be r______________ to others.　 (rude)

43.　 Don’t throw r ______________ everywhere, you should keep it clean and tidy.　 (rubbish)

42.　 The soldiers are standing in r____________.　 (rows)

41.　 The paper feels r____________ ;it isn’t smooth at all.　 (rough)

40.　 The wheel of history keeps r________________ on.　 (rolling)

39.　 Computers play an important r_____________ in our life.　 (role)

38.　 We had already got to the top of the hill when the sun r____________ red. (rose)

37.　 The time is r____________ for taking actions.　 (ripe)

36.　 He experienced the Great Cultural R______________ when he was young.　 (Revolution)

35.　 I hope your new book gets good r______________.　 (reviews)