(    ) 11.He went into the room and _______ the door.
A. lock    B. locking    C. locks    D. locked
(    ) 12. —What _____ you _______ last week? 
—I bought a bag.
A. did ,buy    B. did , bought    C. do, buy    D. do, bought
(    ) 13. —_____ he ____ his lunch?
— Yes, he did.
A. Have ,had    B. Had, has    C. Did, have    D. Did, had　
(    )14.—Did the thieves _____ into the car?
—No, they______.
A. fell, didn’t  B. fall, did  C. jump, didn’t  D. jump, did
(    ) 15. —When did May come back from Hong Kong?
          —She _____ from Hong Kong last Friday.
A. come back    B. comes back    C. returned back    D. came back
(    ) 16. ____ she _____ this dictionary in the bookshop nearby last week?
A. Did, buy   B. Does, buy  C. Did, bought   D. Does, buys
(    ) 17. He ____ to the station this morning and was______ for the train.
A. hurry, in time   B. hurries, on time 
C. hurried, in time    D. hurried, at time
(    ) 18. Where _____ Uncle Sun yesterday?
A. was   B. were   C. did   D. does
(    ) 19. —Have you seen him today?
         —Yes, I ____ him this morning.
A. has seen   B. see    C. will see    D. saw
(    ) 20. He ______ worried when he heard the news.
A. is     B. was    C. does   D. did