.— When did they come back last night?— It was midnight ____ all of us were sleeping.
#4746
A
that
B
when
C
which
D
in which
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At a rough estimate .Nigeria is           Great Britain.
#4872
A
three times the size as
B
the size three times of
C
three times as the size of
D
three times the size of
From his ____ voice on the phone, I know everything is going under way. 
#4618
A
satisfactory
B
satisfying
C
satisfied
D
satisfaction