Oh, I’m not feeling well in the stomach. I _________ so much mushroom this morning.

A．shouldn’ t eat

B．musn’t have eaten

C．mustn’t eat

D．shouldn’t have eaten

（）是所有传播沟通对象中最具社会权威性的对象。

A.媒介公众

B.政府公众

C.社区公众

D.名流公众