2020版高考英语大一轮复习Unit1Lifestyles课件北师大版必修1
2020版高考英语大一轮复习Unit1Lifestyles课件北师大版必修1第4页

单句改错 ④They are supposed to obeying the person of a higher rank.  obeying→obey     句式升级 ⑤You are late. You were supposed to arrive half an hour ago. →You are late. You  are supposed to have arrived     half an hour ago.(改 为同义句)