it--to be impolite if you point at anyone with chopsticks.A.is think B.thinks C.is thought D.thou

问题描述:

it--to be impolite if you point at anyone with chopsticks.A.is think B.thinks C.is thought D.thou
D.thought

答案C.为什么,我觉得b和d也对啊,为什么选c形式主语,被动语态