49.He wrote a letter to me that his trip to Japan had been put off because of the bad weather
A. inform B. informing C. informed D. being informed
48. a satisfactory operation, the doctor believed the patient would recover from his illness very soon.
A. Having been given B. Having given C. Giving D. Being given
47. a satisfactory operation, the patient recovered from illness very quickly.
46. When I came in, I saw Dr. Li a patient.
A. examine B. examining C. to examine D. examined
45. The cars in Beijing are as good as those in Shanghai.
A. produce, produce B. produced, produced
C. produced, producing D. producing, producing
44. The graduating students are busy material for their reports.
A. collect B. to collect C. collected D. collecting
43. I had to shout to make myself above the noise.
A. heared B. hearing C. heard D. to hear
42. He walked down the hills, softly to himself.
A. sing B. singing C. sung D. to sing
41. At this moment the bell rang the end of class.
A. announce B. announcing C. announced D. to announce
40. The child sat in the dentist's chair .
A. tremble B. trembling C. trembled D. to trembled
