I didn’t hear the phone．I ______ asleep．
| A．can be | B．must have been | C．must be | D．should have been |
New technologies have made ________ easier to enjoy life than ever before.
| A．that | B．this |
| C．one | D．it |
The California Earthquake took place at 5:15 a.m., and _______ for only a minute.
| A．having lasted | B．to last |
| C．lasted | D．lasting |
By the time the tornado ended, more than 700 people ________.
| A．have killed | B．have been killed |
| C．had killed | D．had been killed |
I didn’t agree ________ what he said. In other words, I didn’t agree ________ his plan.
| A．with; with | B．with; to |
| C．on; with | D．to; with |
About 60 percent of the students ________ from the south; the rest of them ________ from the north and foreign countries.
| A．are; is | B．is; are |
| C．are; are | D．are;/ |