We are confident that the environment ______ by our further efforts to reduce pollution.
| A．had been improved | B．will be improved |
| C．is improved | D．was improved |
The house belongs to my aunt but she___here any more
| A．hasn’t lived |
| B．didn’t live |
| C．hadn’t lived |
| D．doesn’t live |
Either you or one of your students___to attend the meeting that is due tomorrow
| A．are |
| B．is |
| C．have |
| D．be |
The father as well as his three children___skating on the frozen river every Sunday afternoon in winter
| A．is going |
| B．go |
| C．goes |
| D．are going |
In that school,French and Russian are optional,but English is___for all students
| A．special |
| B．regional |
| C．compulsory |
| D．original |
Not only___the data fed into it,but it can also analyze them
| A．the computer can memorize |
| B．can the computer memorize |
| C．do the computer memorize |
| D．can memorize the computer |