Being examined twice a year，whether it is a car or a bus or a truck，is the rule that every driver _______obey in this city.
| A．shall | B．can | C．ought to | D．need |
All her time _______ experiments, she has no time for films.
| A．devoted to do | B．devoted to doing | C．devoting to doing | D．is devoted to doing |
---He will take you as well.
---But I’d rather he ______.
| A．won’t | B．didn’t | C．doesn’t | D．wouldn’t |
______ a pair of compasses, it is easy to describe a circle.
| A．Having | B．To have had | C．If you have | D．If having |
---Does your brother serve in the army?
---No, not now. But he ________ in the army for 8 years.
| A．would serve | B．was serving | C．had served | D．served |
Everyone in our class works as hard as they can ________ to enter a good college.
| A．to hope | B．hope | C．hoping | D．hoped |