On many trains and buses, there are some special seats ________ out for senior citizens. 
#92562
A
marking
B
marked
C
to mark
D
mark
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If ____ in, the viruses can result in illness or even deaths.
#94746
A
breathed
B
to breathe
C
breathes
D
is breathed
(2013·合肥168中学最后一卷)—What on earth made Susan weep?—________ of cheating in the exam.
#88978
A
Be accused
B
She was accused
C
Because she was accused
D
Being accused