. The Parkers bought a new house but ______ will need a lot of work before they can move in.
| A．they | B．it | C．one | D．which |
Only when the firefighters put off the firewhat great damage it caused.
| A．we had realized | B．had we realized | C．we realize | D．did we realize |
—Is there any possibilityyou could pick me up at the airport?
—No problem.
| A．when | B．that | C．whether | D．what |
While watching television，____．
| A．the doorbell rang | B．the doorbell rings |
| C．we heard the doorbell ring | D．we heard the doorbell rings |
To good relationships with your teachers and classmates, you should learn to be on good terms with them.
| A．bring up | B．add up | C．keep up | D．take up |
A great number of studentssaid they were forced to practice the piano.
| A．to question | B．to be question | C．questioned | D．questioning |