____ her friend was badly hurt, she burst into tears. 
#94310
A
Hearing
B
Having heard
C
To hear
D
Heard
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Many things _____ impossible in the past are common today. 
#98285
A
considered
B
to consider
C
considering
D
being considered
He pretended _______ me when we met in the street.
#92570
A
not to know
B
not to be knowing
C
not having known
D
not knowing