That piece of music sounds quite familiar. Who _____ the piano upstairs?
#102640
A
as played
B
played
C
plays
D
is playing
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______ of danger in the street at night, she had to go home, with a friend _____ her.
#101448
A
Warned ; accompanied
B
Warning; accompanying
C
Having warned; accompanied
D
Having been warned; accompanying
The fire was finally brought under control, but extensive damage _________. 
#99352
A
is caused
B
was causing
C
had caused
D
had been caused