Excuse me II was blocking your way.
| A． | didn't realize | B． | don't realize | C． | haven't realized | D． | wasn't realizing |
It's the second time that I __________ in Shanghai ！ What great changes have taken place in Shang Hai. It is ten years since I __________ it last time.
| A．have been ； left |
| B．had been ； left |
| C．have been ；had left |
| D．went ；had left |
__________ I wrote a little poem, I confidently placed it right on my father's plate on the dining-room table.
| A．The first time |
| B．At first |
| C．It was the first time |
| D．For the first time |
When I met him the other day，it was the first time we __________ each other since we were at school.
| A．saw |
| B．had seen |
| C．were seeing |
| D．have seen |
By the time Jack returned home from England, his son __________ from college.
| A．graduated |
| B．has graduated |
| C．had been graduating |
| D．had graduated |
—Thank God you're safe ！
—I stepped back Just __________ to avoid the racing car.
| A．in time |
| B．in case |
| C．in need |
| D．in vain |