以下例句动词加S怎么分析?课文中：Publicspeakers,however,oftensendmixedmessages.课后练习（参考书答案）：Themediasometimessendsmixedmessages,butmostpeoplebelievewhattheyseeoverwhattheyhear.请问两个句子

Question

以下例句动词加S怎么分析?
课文中：Public speakers,however,often send mixed messages.
课后练习（参考书答案）：The media sometimes sends mixed messages,but most people believe what they see over what they hear.
请问两个句子都一样,为什么一个用send,一个用sends呢?

Answer 1

第一个句子的主语是复数,speakers,所以用send.
第二个句子的主语是单数,media,所以用sends.