John _____ such a thing about you. He never speaks ill of you behind your back.
| A．can’ t have said | B．might not say | C．couldn’ t say | D．mustn’ t have said |
Mary is one of the brightest students who_________ from New York University.
| A．is graduated | B．have graduated |
| C．has graduated | D．are graduated |
Mary is short__________ her brother is very tall.
| A．still | B．nor | C．while | D．when |
It’s clear__________ that a hard working student has___________ a great interest in science.
| A．不填; discovered | B．不填; developed |
| C．that; invented | D．that; developed |
These students are quick at learning. We'll have them __________ with new methods.
| A．training | B．to train |
| C．to be trained | D．trained |
What he lacks is more patience,___________?
| A．isn't it | B．is it | C．doesn't he | D．does he |