36. Mike ________ (make) quite a few friends since he came to China.
37. --- The door is open. Who _________ (open) it? Do you know?
-- Sorry, I don’t know.
38. My father ___________ (read) the novel twice.
39. Wu Dong _____________(be) a soldier for one year.
40. I ______________(give) my friend a nice book recently.
41. Li Ping and Wu Dong ____________(see) the old man three times.
42. _____ she ever ___________(teach) you English?
43. These children _____ (stay) in the park for two hours.
44. Both of them ________________ (be) in Hongkong for ten days.
45. Both of them ____________ (come) to Hongkong ten days ago.