Question

As we were asleep, ＿＿ of us heard the sound .

A．both

B．none

C．all

D．any

Answer 1

B

代词辨析。both 两者都；none 一个也没有；all全部都； any任何一个。句意：由于我们都睡着了，我们一个也没有听见这个声音。故选B。