We all feel puzzled why the students _____ the same mistakes repeatedly in exams.
| A．were making | B．have been making | C．had made | D．will be making |
My request is that the information referred to in my report ________ Mr. Brown without delay.
| A．to be e-mailed | B．be e-mailed | C．e-mailed | D．being e-mailed |
.________ that he had wasted a lot of time, Tom decided to work hard on his study.
| A． Realizing | B．To realize | C．Realized | D．Having been realized |
While watching television,________________________.
| A．the doorbell rang | B．the doorbell rings |
| C．we heard the doorbell ring | D．we heard the doorbell rings |
The reason why I want to write this review is to warn future travelers on how to avoided ________________ by those salesmen.
| A．being cheated | B．cheating | C．to cheat | D．to be cheated |
With lots of papers to read, he ____________ to the cinema.
| A．mustn’t | B．mustn’t have gone |
| C．couldn’t go | D．couldn’t have gone |