People living in the desert choose to keep their ancient lifestyles and customs, _______people in cities throw away their cultural traditions.
#31532
A
when
B
if
C
unless
D
while
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In some places in Yunnan, women are expected to run society and earn money ______ men work at home and raise their children.
#33079
A
but
B
while
C
because
D
though
Charlie was a rich boy who had more toys than you could imagine. A time came when he was so used to all his toys __________ he began to want something different.
#31386
A
as
B
which
C
that
D
when
(2013·天津，6)We have launched another man－made satellite，________is announced in today's newspaper.
#30503
A
that
B
which
C
who
D
what
_________ the internet is _________, I do not think it is a good idea to spend too much time on it.
#34019
A
When ; helpful
B
As ; great help
C
While ; of great help
D
Now ; of no help