— I rang the bell for a long time last night, but no one opened the door.— Oh, the family __________ a party and they didn’t hear the bell.
#52676
A
had
B
were having
C
had had
D
have had
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My father __________ free. He can’t play with me.
#57475
A
has
B
is
C
doesn’t have
D
isn’t
—_____ swim in the river? — oh, no. Our teacher told us ____ here. It’s dangerous. 
#54969
A
Why don’t; not swim
B
Why not; not to swim
C
Why not; don’t swim
D
Why don’t; don’t swim