One of our duties to carry water for the old and sick. [ ] A．areB．is C．haveD．has
来源：网络
时间：
推荐文章
![One of our duties to carry water for the old and sick. [ ] A．areB．is C．haveD．has](/pic/43_900342.jpg)
One of our duties _____ to carry water for the old and sick.
[]
A．areB．isC．haveD．has
试题答案
答案：
One of our duties _____ to carry water for the old and sick.
[]
A．areB．isC．haveD．has
答案：