во первых пишется exercise, а не exercase !
2. 1. there are seven boys in our class.
2.i have got two sisters.
3. ben has four books in his bag.
4.our third lesson is histore.
5,we have six lessons a day.
6.art is the fifth lesson.
3. 1.we have six lessons today. history is second.
2.sunday is the first day of the week.
3.there are twelve months in a year.
4.december is the twelfth month of the year.
5.six and twenty is twenty six.
6.my name is tom. i am eight.