I have no idea ______ measures the government will take to stop the air from being further polluted.
#30177
A
which
B
what
C
that
D
whose
推荐题目
It is a difficult problem for high school students they can properly use the Internet．
#30653
A
what
B
where
C
when
D
whether
I have a tight budget for the trip, so I'm not going to fly _ the airlines lower ticket prices.
#31637
A
once
B
if
C
after
D
unless
After two hours of hiking, we finally reached _______ Tom thought was the best place to camp.
#31901
A
where
B
which
C
what
D
that
________scores of times, but Derek still couldn’t understand how to use past participle in a concrete situation.
#32441
A
Having explained
B
Having been explained
C
Though it was explained
D
It was explained