.By around 900 AD,there were many places in Northern Europe______the Vikings chose to live.
#4786
A
in which
B
when
C
which
D
at which
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“Would you like tea _____ coffee?” “_____, thanks.”
#4890
A
or, No
B
and, Either
C
or, Neither
D
and, Each
—I’ll go camping this weekend.—          .     
#4519
A
Best wishes
B
No,I'm too busy
C
Don’t give up now
D
Have a good time