—The party will start at 7: 00 sharp. Come earlier.
— _____________.
| A．Good idea | B．You’re right | C．I think so | D．I will |
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 |
His favorite food is fried snack and soft drinks. ______ is no surprise that losing weight is just his dream.
| A．There | B．It | C．As | D．What |
The most interesting thing to the small boy was _______ he got close to the door, it would open of itself.
| A．that as | B．that that | C．what that | D．what when |