You must observe and gather information like Nicolaus Copernicus ________ you want more career advancement opportunities.
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A
or
B
because
C
unless
D
if
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Help others whenever you can _______ you will make the world a nicer place to live in.
#79807
A
and
B
or
C
unless
D
but
The researchers found clear and convincing evidence ________ happiness is the key when it comes to better health and longer lives.
#32958
A
where
B
whether
C
how
D
that
I felt I was so happy ______ it was the first time that I had gone to the Universal Studio.
#30958
A
that
B
even though
C
as
D
when
We can find out ________ all the excitement is about by playing QQ's “Happy Farm”．
#30319
A
that
B
how
C
what
D
when
The other day，my brother drove his car down the street at________I thought was a dangerous speed.
#30058
A
as
B
which
C
what
D
that