Question

（海南农垦中学高三月考1，28）_______,but it is also a great way to lower the number of greenhouse gases in the air.

A．Not only a fun thing is it to do

B．Not only a fun thing to do it is

C．Not only it is a fun thing to do

D．Not only is it a fun thing to do

Answer 1

D

解析:

句意：这件事情不但是一件有趣的事，而且是一种降低空气中温室气体的有效途径。否定词位于句首时，应使用部分倒装。