It was in the lab was in the charge of Mr white they did the experiment.
| A．Where; what | B．which; that |
| C．that ; where | D．that ; which. |
_____ we can see, we can’t get very far in this project without her help.
| A．As long as | B．So long as | C．So far | D．As far as |
Try ____ she might, Sue couldn’t get the door open.
| A．if | B．when | C．since |
D．as |
More than one company ___ the new design to market only to see it quickly denied by those who couldn’t wear them.
| A．has taken | B．has been taken | C．have taken | D．have been taken |
During our stay in London, the guide book ___ a great help. We all had a wonderful time.
A. behaved B conducted C. served D. proved
Her behavior is __________.
| A．worthy praise | B．worthy to be praised |
| C．worth to be praised | D．worth being praised |