The cost of living in Chengdu is among the lowest in China, ________ the quality of life is probably one of the highest.
#56003
A
since
B
when
C
as
D
while
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The twin sisters have learned a lot ________ they came to China.
#55315
A
when
B
after
C
since
D
as soon as
There's a red car parking in our neighborhood. Do you know _____ it is?
#56310
A
what
B
who
C
whose
D
Where