Luckily, we’d brought a road map without ______ we would have lost our way. 
#72575
A
it
B
that
C
this
D
which
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She wrote a month ago, ______ we’ve heard nothing. 
#73446
A
since when
B
before which
C
since that
D
after which
 If we don’t save energy, it _____ some day.
#40988
A
will be run out
B
has been run out
C
will run out
D
has run out
You're the only person ______I've ever met ______could do it. 
#73843
A
who;/
B
/; whom
C
whom;/
D
/; who