A local radio station said that several eruptions _____ in the past twenty years.
| A．had been taken place | B．took place |
| C．have taken place | D．had taken place |
He is delighted to have ___ the examination.
| A．got through | B．look through | C．seen through | D．passed through |
The carpet where he _____was warm and comfortable, so he slept soundly.
| A．was laying | B．was lying | C．had laid | D．had lied |
Any student _____ will be disqualified from the exam.
| A．catching cheating | B．catching to cheat | C．caught cheating | D．caught to cheat |
The theory he sticks to ______ to be of no use in our studies.
| A．proves | B．prove |
| C．proving | D．be proved |
The life he is now used _____ quite different from ours.
| A．is | B．to be |
| C．to being | D．to is |