.— 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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—Sorry, do you mind if I smoke here? —Yes,            
#4877
A
you could
B
go ahead
C
I do
D
my pleasure
He made himself ___ in spite of his ___ English.
#4801
A
understand, broken
B
understand, breaking
C
understood , broken
D
understood, breaking
He must have attended the meeting yesterday, ___he?
#4556
A
didn’t
B
mustn’t
C
needn’t
D
hadn’t