It is not when to start the job but who to start ______is of importance. 
#85372
A
which
B
it
C
that
D
this
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It was Tom ________ is a soldier ________ saved the little girl from the water yesterday.
#84752
A
that;that
B
whose;whom
C
who;who 
D
that;who
It was _____back home after the experiments.
#85525
A
not until midnight did he go
B
until midnight that he didn’t go
C
not until midnight that he went
D
until midnight when he didn’t go