中考英语时态专项练习(9)

　　11. How can I ever concentrate (集中精力) if you ________ continually ________ me with silly questions?

　　A. haveinterrupted B. had interrupted

　　C. areinterrupting D. wereinterrupting

　　12. I bought this shirt for 35 yuan yesterday.

　　Its on sale today for only 29. You should have waited.

　　Oh, really? But how ________ I know?

　　A. would B. can

　　C. did D. do

　　13. Will you go now?

　　Not until I ________ my experiments.

　　A. will finish B. have finished

　　C. will have finished D. had finished

　　14. Look! Someone has spilt coffee on the carpet.

　　Well, it ________ me.

　　A. isnt B. hasnt been

　　C. hadnt been D. wasnt

　　15. Did you enjoy your holiday?

　　Yes, its the best holiday I ________ these years.

　　A. had B. have had

　　C. had had D. would have