51. --Tony, why are your eyes red?
--I ____ up peppers for the last five minutes.
A.cut B. was cutting C. had cut D. have cut
52. --We've spent too much money recently.
--Well, it isn't surprising. Our friends and relatives ______ around all the time.
A. will come B. had come
C. were coming D. have been coming
53.Is this the third time that you ________ late?
A.have been B.am C.was D.had been
54. By the time you arrive this evening, _______for two hours.
A. I will study B. I have been studied
C. I had studied D. I will have studied
55. I called Hannah many times yesterday evening, but I couldn't get through
while her brother ______ on the phone at that time.
A.has been talking B. was talking C. has talked D. talked