Great changes have taken place in that school. It’s no longer ___ it was 20 years ago, ____ it was so poor.
#75174
A
what, when
B
that, which
C
what, which
D
which, that
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(2013·四川，9)Nowadays people are more concerned about the environment________they live.
#75584
A
what
B
which
C
when
D
where
Whenever I met her, was fairly often, she greeted me with a sweet smile.
#77048
A
who
B
that
C
when
D
which
The App WeChat provides a networking platform ______ communication is faster and easier.
#75215
A
which
B
where
C
when
D
why
The days are gone ________ we could leave our door unlocked at night.
#77887
A
where
B
which
C
when
D
while