. It was the fact _______his father was ill in hospital_________ worried him and kept him awake for a whole night .
#70656
A
which ; that
B
which ; which
C
that ; which
D
that ; that
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A nest is to a bird ______ a house is to a man.
#69217
A
as
B
that
C
which
D
what
_____several times,but unfortunately,the boy still couldn’t smooth away the problem on his own.
#73673
A
Having been explained
B
The problem having been explained
C
The problem had been explained
D
Although the problem had been explained