The two elderly sisters, ____ so long, held each other.
#94639
A
being separated
B
having been separated
C
to be separated
D
had been separated
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Have you found the suitable music ______ at the party?
#99003
A
dance to
B
to dance with
C
dancing
D
to dance to
Now a lot of new technologies can ______  problems in industry.
#93741
A
be applied to solve
B
be applied to solving
C
apply to solve
D
apply to solving