It’s good to know _____ the dogs will be well cared for while we’re away.
| A．what | B．whose | C．which | D．that |
While watching television, .
| A．the doorbell rang |
| B．we heard the doorbell ring |
| C．there was someone knocking at the door |
| D．we heard the doorbell rung |
In face of failure, it is the most important to keep upgood state of mind.
| A．a; 不填 | B．不填；a | C．the; 不填 | D．不填；the |
—What did shefor so much money.
—Nothing but a few CDs.
| A．pay | B．spend | C．buy | D．prepare |
Just imagine performing such an opera as Turandot in the Forbidden City there _____ be a better setting!
| A．mustn’t | B．shouldn’t | C．couldn’t | D．needn’t |
Our government has taken some measures to overcome the lack of electricity, but it may take some time _____ we have enough power．
| A．since | B．after | C．unless | D．before |