Air pollution has become__________ than ever before. We must do something to stop it.
#60593
A
serious
B
more serious
C
most serious
D
the most serious
推荐题目
Mike is _____ than his friend Sam.
#61255
A
tall
B
taller
C
tallest
D
the tallest
 –- Why is Tom unhappy today? -- He got______ points of all the boys.
#61033
A
the most
B
more
C
the fewest
D
the least
Our lives are becoming ________. 
#61204
A
good and good
B
better and better
C
more and more good
D
more and more better
There will be _______ space for wildlife if we do _______ to protect the environment.
#61370
A
more and more; everything
B
fewer and fewer; anything
C
less and less; nothing
D
less and less; something