主语从句中 时态问题 例如一、It seems that he was right. 1/这对吗?主句是一般时,主语从句可以是一般过去时吗?2/ that he was right. 可否看成是表语从句?二、 It has turned out that he was right. 对 It has...
It is considered unfriendly not to smileIt is best not to touch unless you are sure the other person is comfortable with it.这两句里的not to smile,not to touch视作定语还是状语,如果是状语,是充当什么状语?