He made a promise __________he would help me.
#30389
A
what
B
when
C
that
D
which
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It was several minutes _______ we realized what was happening~our dog was trapped in a newly-dug tunnel.
#30391
A
since
B
before
C
until
D
while
She has never done anything for them, _______ they have done everything for her.
#30515
A
when
B
whereas
C
as
D
because