名词单数变复数新目标内容摘要：
amily child man pencil case sheep s s ss es knives ss s s s ss s s s s families children men s sheep 句子单数变复数 1. This is a book. 2. That is an eraser. 3. It is a red apple. 4. I am a boy. 5. He / She is a teacher. 6. What’s this ? These are books. Those are erasers. They are red apples. We are boys. They are teachers. What’re these ? this – that – I – you – he / she / it – am / is – these those we you they are 单数。阅读剩余 0%
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