为什么是强调句It was a scientist called Charles Keeling who made ac

it was/is ...that/who...是强调句,但? it was he who told you the news 强调句 这里为什么是有 he 不有him 呢 说说强调句 英语强调句是不是只有强调部分是主语且指人时才能用It is/was...who?如果是指人但不是主语能用who吗?例如： 强调句 It is (was) 被强调部分+ that (who) + 句子其他部分 有一个强调句是这样的：I can't remember what it was that made the teathe 强调句中强调主语是it was i that met him yesterday,为什么是用i而不用me? It is called a clavichord.中的called是过去式吗?如果是,那为什么还用is而不是was呢? It were you who made her sad.强调句中用were也可以吗 强调句it is（was) .that/who,其中it is（was)能不能写成it's/it was不能缩写么? 定语从句和强调句 为什么 It was in the house that we met.是强调句 而It was th 被动语态转换 It is called a clavichord.It was made in Germany in 1 A famous scientist who had made an important medical breakth