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
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Nowadays，it is common to see people staring at their mobile phones instead of reading a real book，＿＿＿＿＿＿many experts are worried．
#75642
A
when
B
for which
C
where
D
about which
They gave me so much help, without ____ I couldn't have succeeded last year．
#77205
A
them
B
which
C
it
D
that
If we forgave criminals, we might become a society of endless excuses no one accepts responsibility for anything．
#78358
A
which
B
where
C
when
D
as
-----What do you think of Andrew? -----There are some things ____ are not easy to ______, and his rudeness is one.
#77589
A
that; put up with
B
which; get along with
C
what; think of
D
that; put aside