We have not even gone over the first module,_______finished the sixth one

题目

We have not even gone over the first module,_______finished the sixth one
A not to mention
B not to speak of
C much less
D much more

答案

C
much less意为“更别说,更不用说,更别提”
原句意为“我们甚至没有复习完第一单元,更别说第六单元了”