She is _______ you could ever meet.
| A．as a gentle girl as | B．as gently a girl as |
| C．a girl as gentle | D．as gentle a girl as |
If he ___ me his telephone number yesterday, I ___ able to ring him up now.
| A．told, would be | B．had told, would have been |
| C．had told, would be | D．told, am |
The internet has made ____ possible for everyone to talk with friends miles away.
| A．that | B．this | C．one | D．it |
The _________ at the military academy is so rigid that students can hardly bear it.
| A．convention | B．confinement | C．principle | D．discipline |
I remembered _____ the door before I left the office, but forgot to turn off the lights.
| A．locking | B．to lock | C．having locked | D．to have locked |
Teachers required that all the students ___ their homework all alone.
| A．must finish | B． would finish | C．had to finish | D．finish |