60. Mrs. Black was always busy _____　 clothes when I saw her. (wash)

59.Tom had a toothache for a long time. He had the bad tooth_______ out yesterday. 　(pull)

58. Do you live in a 　　　　　house ? 　(wood)

57. I can’t wait　　　　 you. I miss you so much.　 (see)

56. Many places in the __________ part of China are terribly short of water because of years of drought. 　(north)

55. The girl is so nice that she _________　 highly of. 　(speak)

54. Thanks to space satellites, the world 　　　　is becoming a much smaller place.(it)

53. The sick man is getting ________ .(ill)

52. Mr．Read learned German as his _______ language.(two)

　 用括号内所给词的适当形式填空。(每空不限一词)

51. There are some ________between American English and British English.(different)