问题
选择题
There are, of course, bad teachers as well as ________.
A．good one
B．some good
C．good ones
D．those good
答案
答案：C
句意：当然有一些坏老师也有一些好老师。one 是泛指，同名异物，根据前面bad teachers，后面应用good teachers，为了避免重复，用ones 来代替teachers，所以选C。