If there are         trees, the air in our city will be         cleaner.
#61428
A
less, more
B
more, more
C
more, much
D
much, more
推荐题目
—Did you enjoy yourself at the party? —Yes, I’ve never been to _______ one before
#60888
A
a more exciting
B
the most excited
C
a more excited
D
the most exciting
The number of the students in our school        than that of theirs.
#61326
A
is more
B
is less
C
are larger
D
is larger