-Could I use your bike, Jack?
--Of course, you____________.
| A．can | B．may | C．could | D．might |
---Have you got used to your school life here?
---Yes, but I don’t like _______ when we have to do exercise on cold winter mornings.
| A．that | B．it | C．those | D．this |
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 |