Modern families require the food to be convenient to cook, high in _________ and low in price.
| A．identity | B．quality |
| C．advantage | D．attitude |
Keep up good state of mind even if you _____ fail plenty of times.
| A．must | B．will | C．can | D．should |
I can’t remember when exactly the Robinsons left _____city ,I only remember it was ______ Monday. 。
| A．the , the | B．a ,the | C．a, a | D．the, a |
Some people ________ not have plans yet for New Year’s Eve, but others know exactly what they will be doing.
His conclusion, ______ on careful research, was acceptable.
| A．to base | B．to be based | C．basing | D．based |
It was __________________ back home from work.
| A．not until midnight did he go | B．until midnight that he didn’t go |
| C．not until midnight that he went | D．until midnight when he didn’t go |