2．My mother 　　　　some washing when I 　　　home this evening.　　　

　 A. does, got　　　 B. was doing, got　　 C. did, got　　　 D. were doing, was doing

1．I 　　　　　my home work this time yesterday evening.

　 A. were doing　　 B. was to do　　　 C. am doing　　　 D. was doing

50.advanced production worker 先进生产者

49. advance country 发达国家

48. advance booking office 预售票初

47. adult education 承认教育

46. adopt vt. 采用；选定；正式通过

45. admit the best examinee 择优录取

43. admit vt. (1).承认

Later, the foreign minister may admit what he had said on TV was wrong. (稍后，这位为外交部长可能会就其电视讲话的内容承认他是错的。)

(2)．许可

last week both the north and south Koreas were admitted into the Untied Nations.(上周，南北朝鲜被获准加入联合国。)

42. administrative a. 行政的；执政的