---What   _____ your father? --- He’s a cook.
#44194
A
is
B
are
C
does
D
do
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Many a student  _____ that mistake before.
#86135
A
hasmade
B
havemade
C
hasbeenmade
D
hadmade
Large quantities of polluted water_____ into the sea so that lots of fish died. 
#86296
A
is flowing
B
was flowing
C
are flowing
D
were flowing