Scientists hope to____soon in their fight against heart disease.
| A．break up | B．break out | C．break through | D．break in |
There happened to be nobody under the wall when it fell down, ____ ?
| A．wasn't there | B．was there |
| C．didn't there | D．did there |
Do you know ____ that made it possible for them to continue their project?
| A．what it was | B．what was it |
| C．it was what | D．it what was |
All the class except Eddie, who is ill,____there．
| A．were expecting going | B．is expected to go |
| C．was expecting going | D．are expected to go |
The railway bridge ____ by 2012 will provide a faster route to transport goods．
| A．to be completed | B．is completed |
| C．completed | D．being completed |
He was scolded for not putting the things ____they belonged．
| A．which | B．what | C．that | D．where |