写出下例句只的复数形是 That is my book Is this your cousin?、 Is she your friend?

写出下例句只的复数形是 ---Is that your ruler?--Yes,it is This is my parent 写出下例句只的复数形是 That is my book Is this your cousin?、 Is she your friend? message可数吗?如果message可数请写出例句，写出message是复数时的例句、 that is的复数 写出下面单词的复数形式 this that it写出下面单词的复数形式this that it she he is parent friendbrother family such is my promise that i will come again.这里的such is that 能不能解释下 有例句最好 写出下列单词的复数形式：1、class 2、is 3、this 4、that 5、it this is an apple and that is a 写出复数句.this is an apple and that is a 写出复数句.上句中these或those做主语是be动词用（ ）,名词用（ this和that则用单数_.剧中的brothers是可数名词brotherde__形式英语中,名次 写出下列句子的复数形式 ：This is a book That is my parent Yes it is Is that your pencil? 写出下列句子的复数形式this is my book.is that your sister?that is my baseball.is this your friend?what's this in english? That is an apple的复数是什么 That is his brother的复数形式 Is that his uncle的复数形式 Is that a photo?的复数形式 this,is,it,that,my,的复数. That book is new的复数句 is that her counsin 的复数形式 It is... that... 如果强调的是复数名词怎么办?请问下,如果强调Dogs也用It is dogs that help people.; O& h: P5 W1 x. h |) y L. t6 |还是用They are dogs that help people.