I am concerned ____ it that I can’t concentrate ____ my work because of headache.
#25624
A
of; on
B
of; of
C
about; on
D
about; to
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The famous actor is familiar ________ us, but it is a pity that he is not familiar ________ me no matter how deep I love him.
#25459
A
with; to
B
to; with
C
to; to
D
with; with