参考答案一：

　　WhileHeYanwasatthedoctor's.Iwasgoingtotheclass.WhileHeYanwashavingEnglishclass,Iwashavingatest.Whileshewashavinglunchwithhermother,Iwasplayinginthepark.Whileshevisitingherauntinhospital,Iwasstudyingintheclassroom.Whileshewasgoingshopping,Iwasgoinghome.

　　参考答案二：

　　WhileHeYanwasatthedoctor's,Iwasgoingtotheclass.WhileHeYanwashavingEnglishclass,Iwasgoingshopping.WhileHeYanwashavinglunchwithhermother.Iwashavingalunchwithmyfriends.WhileHeYanwasvisitingauntinhospital.Iwasreadingbooksathome.WhileHeYanwasgoingshopping.IwaswatchingTVwithmyparents.