现在完成时与现在完成进行时练习

现在完成时与现在完成进行时练习（附答案） A. Correct the following sentences. 1. All these years they are contributing articles to our magazine. 2. I have been drinking five cups of coffee this afternoon. 3. What have you been doing before you left Oxford? 4. It's a good job. Have you done it all by yourself? 5. It's a long time since you come to see me. 6. Alice didn't see much of Henry lately. 7. I'm glad to tell you that you passed the exam. B. Complete the following sentences with the right form of the verbs given. 1. You know, I ________ (look) for a job for three months, and this is my first formal interview. 2. My sister ________ (stay) in Beijing for three months last year. 3. The little boy is dirty all over because he ________ (play) in the mud all the morning. 4. I ________ (wonder) if you were free this afternoon. 5. Here he is! We ________ (wait) anxiously for him since last night. C. Make the best choices. 1. — I’m sure Andrew will win the first prize in the final. — I think so. He ________ for it for months. (2008江苏) A. is preparing B. was preparing C. had been preparing D. has been preparing 2. By the time he realizes he _________ into a trap, it’ll be too late for him to do anything about it. (2008山东) A. walks B. walked C. has walked D. had walked 3. So far this year we _______ a fall in house prices by between 5 and 10 percent. (2008福建) A. saw B. see C. had seen D. have seen 4. Cathy is taking notes of the grammatical rules in class at Sunshine School, where she ______ English for a year. (2007湖南) A. studies B. studied C. is studying D. has been studying 5. Danny _________ hard for long to realize his dream and now he is popular. (2007福建) A. works B. is working C. has worked D. had worked 6. —I have got a headache. —No wonder. You_________ in front of that computer too long. (2007江西) A. work B. are working C. have been working D. worked 7. The