问题:
Now the air in our city is _______ than it used to be.Something must be done to stop it.
A.very good
B.much better
C.rather bad
D.even worse
Now the air in our city is _______ than it used to be.Something must be done to stop it.
A.very good | B.much better | C.rather bad | D.even worse |
参考答案: