The last time I _________ her,she _________at a medical college.
| A．was visiting;studied | B．visited;studied |
| C．visited;was studying | D．was visiting;was studying |
One third of the country________covered with trees and the majority of the citizens________black people.
| A．is; are | B．is; is | C．are; are | D．are; is |
It is ________ certain that all your classmates will be dressed________at the new year evening party.
| A．pretty; pretty | B．pretty; prettily |
| C．prettily; prettily | D．prettily; pretty |
We________John's name on the race list yesterday but for his recent injury.
| A．will put | B．will have put |
| C．would put | D．would have put |
The ability________an idea is as important as the idea itself.
| A．expressing | B．expressed |
| C．to express | D．to be expressed |
He________an engineer by an oil company in the Middle East.
| A．was employed as | B．employed as |
| C．was employed for | D．employed |