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China began to open to the outside world in the late 1970s. _________, there have been great changes in the country.                  
#46264
A
By then
B
As a result
C
At last
D
In all
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 Don’t read _______. It’s bad for your eyes.
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in the bed
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much, to
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#46314
A
/ , above
B
at, below
C
in, near
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on, from