题目内容
— Is Jason all right? He looks so tired!
— Not sure. He ______ deep into the night yesterday. He’s having an exam soon.
A. may have studied
B. should have studied
C. might study
D. must have been studying
A |
表示对过去发生的情况的推测,应该用may / might have done结构。should have done意为“本应该做某事而没做”,must have been doing表示对过去某段时间内一直在进行的动作的肯定推测。 |

achieve prepare broadcast introduce inform regret |
76. You can hear the programme _______ every Wednesday. Don’t miss it!
77. To our surprise, the Japanese never feel _____ for what they did in the second war.
78. The success of the experiment proves that we have made great _____ in the study of computer.
79. Let me ____ myself first, my name is Jason.
80. Mother is busy in the kitchen, ____________ for the dinner.