3. Вставьте порядковое или количественное числительные. There are months in a year. 

January is month of the year. 

May is month of the year. 

There are months in winter. 

December is month of the year and month of winter. 

There are days in a week: one is Monday, one is Tuesday, one is Wednesday, one is Thursday, one is Friday, one is Saturday and one is Sunday. 

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