问题
选择题
I had to tell some of them what we wanted to do next, because ________.
A．none of them were here
B．no one was here
C．all of them were here
D．all of them were not here
答案
答案：D
考查部分否定，all..not/not all表示不是所有的都，none/no one是所有的都不，句意是：我得告诉他们下一步我们要做什么，因为不是所有的人都在。选D。
