问题
选择题
Advertisements are powerful and some companies try to mislead us, so we ____ be careful when
reading them.[ ]
A. can
B. may
C. must
D. would
答案
答案：C
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Advertisements are powerful and some companies try to mislead us, so we ____ be careful when
reading them.[ ]
A. can
B. may
C. must
D. would
答案：C