Now the air in our hometown is ___________ than it was before. Something must be done.

Now the air in our hometown is ___________ than it was before. Something must be done.

Now the air in our hometown is ________ than it was before．Something must be done．

1. A.
   much better
2. B.
   more worse
3. C.
   more better
4. D.
   much worse

Now the air in our hometown is _______ than it was before．Something must be done，

A．much better    B．more worse    C．more better    D．much worse