Unit 45There are seven days in a week.Lesson 19Lets learn!Hello,everyone.Hello.Hi.How many days are there in a week?Seven.Whats the first dayof the week?Its Sunday.Lets talk!How many days are there in a week?Seven.Whats the first dayof the week?Its Sunday.Lets practice!Whats the first dayof the week?Its.How many days are there in a week?.?Seven.?Its Sunday.Lets play!How many days are there in a week?.Lets play!Whats the first day ofthe week?.Lets play!?Seven.Lets play!?Its Sunday.Homework1,Copy new words.2,Make sentences with friends.Goodbye!