it is/was...that/who..强调句型都能强调什么句子成分?同位语可以吗?给些例子最后

It is(was) +强调部分+that (who)+从句 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? it is Mary ( )my real friend.A.is B.that was C.who is D.who was it was not who is right but what is right___is of importance.问为什么填that? 强调句式 It is (was) 被强调部分+ that (who)+其余部分,什么时候用who,什么时候用that? 请问,强调句中（it is/was.that/who）除了is/was,be还可以采用什么形式? who was ——broke the window A it this Bit that c this is d that it It is/was+被强调部分+that/who+句子其它部分 再举例说明下 it is Tom that is who Who is that ocer here?It is Who__the first man to travel in space.A was it B is it C was it that D is it who 1.强调句It is me that he wants to see 能用who,It is me who he wants to see 2 ）It was Lily that I saw in the street this morning .能用who代替 that吗?为什么? Who is it?Who is that?的区别. so i didn't ask who it was,为什么不用Who that was !为什么要用who it was wonder __ broke the rule A.it was whoB.itwonder __ broke the rule A.it was whoB.it was who that C.who it was that D.who was it that Jane is going to__ John on this year's Valentine's day.A.marry with B.be married with C.marry to D.marryJane后面是 请问Who is it who lives in that big house? It _Alice and Bob_sang folk songs at the party that day A is that B was that C were that D were who Our classroom is very clean.Do you know who__cleaned it?A. was it that B. it was that C. was it who D.he was这要用什么语序,是强调句吗Do you know who it was that cleaned it？这个句子怎么分析