I ______ have been more than six years old when the accident happened.
| A．shouldn’t | B．couldn’t | C．mustn’t | D．needn’t |
I live in a town ______ runs a small and winding river.
| A．through which | B．which | C．in which | D．where |
The house caught fire last week, with little of the original building _________.
| A．remain | B．remained | C．remains | D．remaining |
Jack and Mike were found cheating in the exam, and _____ by their teacher at the moment.
were scoldedB. are being scolded
C. have been scolded D. were being scolded
Not until he went abroad to further his study_______ the importance of English.
| A．has he found | B． he has found |
| C．did he find | D． he had found |
But for the metal cage to pull the miners to safety, the miners in Chile ____ in less than twenty-four hours.
| A．would not be rescued | B．would not have been rescued |
| C．would be rescued | D．would have been rescued |