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
I ____ to go for a walk, but someone called and I couldn’t get away. 
#104696
A
was planning
B
planned
C
had planned
D
would plan
— Have we got any gas in the car?— It ______. I’m afaid we can’t go much farther 
#104483
A
has ran out
B
is running out
C
has been used up
D
has used up
Mr. Li, who _____ his whole life to education, is retiring next month. 
#100073
A
devoted
B
is devoting
C
has devoted
D
had devoted