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 In the office an electrical engineer is looking through the instructions to know ________ the heat system works before the repair work.
#30344
A
whether
B
why
C
how
D
that
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It is ten years _____ I lived in Nanjing, so I know ____ about what it is like today.
#32654
A
since; nothing
B
that; everything
C
before; something
D
since; anything
He was seriously injured in the traffic accident. _______ is now no possibility _____ he will make a full recovery.
#30156
A
It; whether .
B
It; that
C
There; whether
D
There; that
In fact, I wonder _________ my efforts were all in vain.
#30844
A
that
B
which
C
why
D
where
We now live in ____ is called the Information Age.
#32157
A
when
B
which
C
what
D
that
           we can’t remove our troubles in life forever, we can leave them behind when we are on vocation.
#31528
A
When
B
While
C
Unless
D
Until