I need the correct answer asap.

Identify the structure of the human heart which is a muscular chamber that pumps blood out of the heart and into the circulatory system.

Si besarte fuera pecado, caminaría feliz por el infierno.

Is this inappropriate language,”good evening,everyone. for coming out to sit on hard,uncomfortable stadium concrete on an unseasonably warm evening and wearing clothes and shoes you can’t wait to get home to get get ou of.” if so,how can i write it in formal?