For years, it was viewed as a serious problem, ________ that has never been really solved.
#15139
A
one
B
where
C
it
D
which
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After watching the movie Inception《盗梦空间》, I bought some DVD copies of the film, but now is left.
#15855
A
no one
B
nothing
C
none
D
neither
Almost 90% of the most popular video games contain violence, and ________ of it is extremely violent.
#14717
A
nothing
B
much
C
none
D
many
The earthquake and the heavy losses ________contributed to disabled this family to afford his education.
#16343
A
that
B
it
C
what
D
which