（2014年福州市高三适应性练习）23. Don’t bother your father tonight ------ he’s got a lot ____ his mind.
#25133
A
on
B
to
C
in
D
around
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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
The woman sold the eggs ________ seven dollars and they were sold ________ half price.
#28557
A
with, at
B
for, at
C
at, in
D
by, on