(1).主格人称代词要变成相应的复数主格人称代词,即I→we, you→you,she,he,it→ they。如:She is a girl. →They are girls.(2).am,is要变为are。如:I’m a student. →We are students.(3).不定冠词a,an要去掉。如:He is a boy. →They are boys.(4).普通单数名词要变为复数形式。如:It is an apple. →They are apples.(5).指示代词this,that要变为these,those。如:This is a box. →These are boxes.
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