—Mom, today I received a message telling me to send money to the account.
—Delete it. It’s a trick. Many a person by such tricks.
A. have been cheated
B. were cheated
C. has been cheated
D. was cheated
网友回答
A. have been cheated
B. were cheated
(答案→)C. has been cheated
D. was cheated
解析：考查主谓一致和被动语态。Many a+单数名词虽然表达的是复数概念但是做主语时谓语动词用单数；句意：很多人被这样的诡计欺骗了。