is it the email that you received yesterday ______makes you upset?A.which B.what C.that D.when
说是强调句.说是去掉it is that,句子说得通就是强调句.可是我就想问了.it is the email which makes you upset.也可以说是定语从句啊,那么选which 如果是 it is the email that you received yesterday.这个句子可以说是强调句吗,强调宾语啊.强调宾语的强调句,去掉it is that 都怪怪的啊.比如说 it　is the place that i went yesterday.也是强调句啊,去掉 it is that 句子不对啊
各种茫然混乱　　求大神!