-- Do you think it's a good idea to make friends with your students?
--______, I do. I think it's a great idea.
| A．Really | B．Obviously |
| C．Actually | D．Generally |
Everyone in our class was working hard and doing what we could ______ a good college.
| A．enter | B．to enter | C．entering | D．entered |
It is said that the early European playing-cards ______ for entertainment and education.
| A．were designed | B．have designed | C．have been designed | D．were being designed |
Gaddafi’s failure in Sirte _________ him the last opportunity to reestablish the government.
| A．spent | B．took | C．cost | D．paid |
I suppose by the time I come back next year, all these old houses south of the Baoshehe River ________ down.
| A．will have been pulled | B．will be pulling | C．will have pulled | D．will be pulled |
The ability _______ an idea is as important as the idea itself.
| A．expressing | B．expressed | C．to express | D．to be expressed |