-How about the pollution in the countryside?-Luckily, it’s not as serious as _______ in the big cities.
#54581
A
that
B
it
C
one
D
those
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She is _____ friend.
#39739
A
mine
B
my
C
ours
D
theirs
---Could you tell me __________ my English?---By listening and speaking more.
#54494
A
what to improve
B
where to improve
C
how to improve
D
which to improve