问题

We are sure one day the air in Beijing will be much ______ than today.
A:clean
B:cleaner
C:cleanest
D:the cleanest
B:cleaner
C:cleanest
D:the cleanest
正确答案是:
同类题型
Would you like some coffee?— No, thanks. I _____ drink coffee. Coffee is bad for my stomach.
Dave is ______ honest boy. We can believe him.
we first heard of the man referred to as a computer specialist in software.
Our teacher asked us to_______ a story about the moon.
Are these gloves ________, Betty?—No, they aren’t. My gloves are here.