Not only __ polluted but __ crowded.

问题描述:

Not only __ polluted but __ crowded.
A.was the city;were the streets
B.the city was;were the streets
C.was the city;the streets were
D.the city was;the streets were
为什么不是d或其他选项?

C 这个句型中not only需要倒装,但but also不需要,保持一般语序即可.