Question

—What do you think of the two backpacks? —______ of them are very nice.

A．Either

B．Both

C．Each

D．All

Answer 1

B

考查点：代词的辨析。解题思路：either “（两者中）任意一个”，both“（两者）都”，each “（三者或者三者以上的）任意一个”，all “（三者或者三者以上）都”，根据答句中用be动词are，故做主语的是复数，问句指的是two backpacks。故选B。