单项选择题

I think I was at school, ______ I was staying with a friend during the vacation when I heard the news.

A. or else
B. and then
C. or so
D. even so
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单项选择题
If tap water were as dangerous as some people think, ______ would be getting sick.
A. a lot of mom us
B. ore a lot of us
C. a lot of us more
D. a lot more of us
单项选择题
No one would have time to read or listen to an account of everything ______ going on in the world.
A. it is
B. as is
C. there is
D. what is
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