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
推荐题目
We have brought in a good grain harvest for three years_________.
#26888
A
on purpose
B
on end
C
on duty
D
on watch
I was standing behind a tall man．When the man looked _____, I recognized him at once．
#26229
A
up
B
down
C
forward
D
about
(2014·山东实验中学二模)—May I trouble you with the question?—Sorry，but it is________my knowledge.
#25139
A
from
B
off
C
beyond
D
to
It's belief that parents have to spend nearly 500, 000 yuan bringing up a child in China nowadays.
#26387
A
beyond
B
in
C
without
D
against