The experiment has_________ the possibility of the existence of any life on that planet, but it does not mean there is no life on other planets.
| A．found out | B．pointed out | C．ruled out | D．carried out |
Many experts hold the view __________ teacher's development is __________ the key to better education lies.
| A．which; where | B．which; which |
| C．that; where | D．that; in which |
A driver should __________ the road when __________.
| A．concentrate on; drive | B．concentrate in; driving |
| C．concentrate to; drove | D．concentrate on; driving |
The new suspension bridge __________ by the end of last month.
| A．has been designed | B．had been designed |
| C．was designed | D．would be designed |
Finally, Tom __________ a good solution to that tough matter.
| A．caught up with | B．kept up with |
| C．came up with | D．put up with |
Although English may not lead directly to a great career, it will certainly give you __________ to a wider range of opportunities.
| A．assess | B．access |
| C．accent | D．account |