| Earth is believed _____ by an object the size of Mars at some point in the distant past before its surface cooled. |
A. to be hit B. to have hit C. to have been hit D. to hit |
| With temperature _____ so rapidly, we could not go with the experiment. |
A. fall B. falling C. fallen D. to fall |
| Bob was arrested by the police on suspicion of driving _____ alcohol last night. |
A. in favour of B. with the help of C. under the influence of D. for the purpose of |
| His conduct at the conference is regarded as being _____ unacceptable. |
A. notably B. firmly C. seriously D. totally |
| A student of English _____ limited exercise finds it hard to get good mark in an English exam. |
A. is used to deal with B. used to deal with C. is used to dealing with D. used to dealing with |
| — How did you play in the match? — Well, our team was ahead by 2 to 0 during the first half, but we _____ in the last ten minutes. |
A. had lost B. have lost C. were losing D. lost |
| He was an unselfish and _____ man who was always willing to help in any way he could. |
A. clever B. rare C. faithful D. noble |
| Quality of such products shall be _____ according to the national or trade standards. |
A. graded B. confirmed C. valued D. fixed |
| It is difficult to _____ what the long-term effects of the accident will be. |
A. calculate B. forecast C. guess D. indicate |
| Our teacher told us that beauty is a universal _____ in folktales from around the world. |
A. issue B. theme C. subject D. account |