_ your help, we’d never have been able to get out of trouble.
| A．Had it not been |
| B．If it was not |
| C．If we had not been |
| D．If there has not been |
This is the best dinner that I________.
| A．enjoyed | B．have enjoyed |
| C．had enjoyed | D．enjoy |
—Isn't it hard to drive downtown to work?
—Yes，that's why I________to work by train.
| A．have been going | B．have gone |
| C．was going | D．will have gone |
—Look！How long________like this?
—Three weeks! It's usual here that rain________without
stopping these days of the year.
| A．has it rained；pours | B．has it been raining；pours |
| C．is it raining；is pouring | D．does train；pours |
He________Beijing，so he knows a lot about it.
| A．has gone to | B．has been to |
| C．went to | D．goes to |
It was the third time this term that the teacher________with the naughty student.
| A．had talked | B．have talked | C．talked | D．talk |