In old China, the poor suffered from cold and hunger ________ the rich enjoyed all the good things of life.
#55524
A
as
B
when
C
while
D
therefore
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_____ a lot of small ads are put up on the walls, out city will be untidy.
#55173
A
Until
B
Though
C
If
D
Unless
_______ they were not rich, they tried their best to send their child to the best school.
#58252
A
However
B
Because
C
Even though
D
So
