Most Chinese students hope ________ homework. If so, they can have much ______time for their hobbies.

A．to have an hour of; more

B．to have an hour for; most

C．having an hour of; more

D．to have an hour to do; most

经济周期扩张导致（）。

A.债券需求和供给曲线都向右位移；

B.债券需求和供给曲线都向左位移；

C.债券需求曲线向右位移，供给曲线向左位移；

D.债券需求曲线向左位移，供给曲线向右位移。