Answer:
The first question would be: Hoy es lunes veintiocho
Second would be: Hoy es lunes, 28 de Septiembre de 2020.
Third is asking what is the weather lie today? So for that, you would answer En mi opinion hace calor for, In my opinion it is hot and En mi opinion hace frío for, In my opinion, it is cold and then En mi opinion es agradable fuera for, In my opinion, it is nice outside.
For the conjugation square:
Ser in yo form is soy, and Tener in yo form is tengo.
Ser in tu form is eres, and tener in yo form is tienes
Ser in usted form is es, and tener in usted form is tiene
Ser in el/ella form is es, and tener in el/ella form is tiene
Ser in nosotros form is somos, and tener in nosotros form is tenemos
And Ser in ellos/ellas/uds is son, and tener in ellos/ellas/uds is tienen
yo means I
tu means your
Explanation: