3.these days这些天 应该表示还在持续吧

26.C表示机器不工作,D表示机器现在没有在含橘工作.根据后面那句话应该要表达一中状态

31.选C的话这句话就有两个现在完成时了.我倒觉得D比较好.

28.中间这句话谈尺团是想强调一下我朋友是在XXX组织工作一辈子后,这月要退休,表示对现在的影响?~,6,高考英语单项选择 时态

3.As you can see, the number of cars on roads ______ rising these days. （06全国卷Ⅱ）

A. was keeping B. keep C. keeps D. were keeping

答案 C 为什么不选A

26.This machine ______ , It hasn’t worked for years . （06浙江卷）

A. didn’t work B. wasn’t working C. doesn’t work D. isn’t working

答案c 为什么不选d

31.I ______in London for many years,but I’ve never regretted my final decision to move back to China. （06重庆卷困带）

A. lived B. was living C. have lived D. had lived

答案A 为什么不选c

28.My friend, who ____ on the International Olympic all his life , is retiring next month. （06浙江卷）

A. served B. is serving C. had served D. has served

答案 D 为什么不选a