PSAs are often run _____ free, and are ______ to educate people about health, safety, or any other problem that affects public welfare.
#26545
A
for, mean
B
for, meant
C
of, to mean
D
in, meaning
推荐题目
Some high officers were punished by law only because they were ______ what didn’t belong to them.
#27368
A
in the possession of
B
in possession of
C
possessed
D
possessing
While in London, we paid a vist to the hospital founded______ Florence Nightingale.
#29051
A
in honour of
B
in favour of
C
in line with
D
in place of
Gun control is a subject ________Americans have argued for a long time.
#25382
A
of which
B
about which
C
with which
D
into which
In the dark street, there wasn’t a single person ___ she could turn for help.
#28799
A
that
B
who
C
from whom
D
to whom