The smog arrived in the Yangtze River Delta region on Nov．30，_________the air quality in 1 2 cities out of 25 was rated as severely polluted by Dec．1．
#75768
A
where
B
when
C
which
D
what
推荐题目
The user also wears special gloves to ‘touch’ the people and objects _______ he or she sees.
#77901
A
who
B
which
C
that
D
what
Is that the reason __________ you are in favor of Obama for the second round?
#78058
A
which
B
why
C
the one
D
for which
People ________do exercise every day have a better chance of staying healthy than those ________don’t.
#78256
A
who; /
B
/; who
C
who; who
D
/; /
It was playing computer games_______ cost the boy plenty of time______ he ought to have spent doing his homework.
#78463
A
that; that
B
which; that
C
which; when
D
that; when