The environment will be further polluted unless some measures _____.
#100612
A
are taken
B
will be taken
C
are being taken
D
should be taken
推荐题目
Nobody but a few little boys ___ in the garden now.
#101983
A
are playing
B
play
C
plays
D
is playing
 His film is sure to win the award because it ____ by most people.
#100220
A
thinks well of
B
is thought well
C
is well thought
D
is well thought of[