We’ve just heard a warning on the radio _______ a typhoon may be on its way.
#68290
A
what
B
when
C
which
D
that
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 I hurried________I wouldn’t be late for work. 
#72172
A
since
B
so that
C
as if
D
unless
The little boy was in danger. The doctors and nurses are doing        him.
#69299
A
what they can do help
B
everything they can help
C
what they can to help
D
all what to help