问题

If there is pollution, the air in our city will be dirtier.

A:happy
B:happier
C:happily
D:more happily;

正确答案是：

同类题型

________ name is Tony and ________ name is Lucy.

______ the bad weather, we enjoyed our holiday very much

Mary is _____three sisters.

I’ve got the first prize for the English speech contest. How happy I am!—- ___________.

It’s really cold today， ______