Punctuation - Advanced 1

my childrens toys are everywhere what a mess

its rainig so hard i think ill stay indoors

johns car has broken down so hes walking to work

several countries participated in the airlift italy belgium france and luxembourg

theres no room for error said the engineer so we have to double check every calculation

when the teacher commented that her spelling was poor lynn replied all the members of my family are poor spellers why not me