The streets here are not so ____ as those in our city. 
#44940
A
clear
B
clean
C
dirtier
D
longer
推荐题目
I think math is not ________ science.
#45044
A
as easy as
B
less easy
C
easier
D
as easier as
Jim is good at maths, but his physics is _________.
#44235
A
worse
B
worst
C
better
D
best