国家开放大学 / 综合英语（2）
---Go out for a walk?
---I’d like to, but I _ _ _ _ _ _ clean the room first.
a.try to
b.have to
c.manage to
d.ask to
---I’d like to, but I _ _ _ _ _ _ clean the room first.
a.try to
b.have to
c.manage to
d.ask to
参考答案：