人教版选修6_Unit 3 A healthy life Grammar(共29张PPT)课件
人教版选修6_Unit 3 A healthy life Grammar(共29张PPT)课件第4页

Tips 1 “It” can be used as personal Pronouns(人称代词) , referring to the person or the ________ mentioned above, or the person who you are not sure of gender(性别).

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