Insert a comma $($or commas$)$ in the correct place$($s$)$ in the following sentences: $36.$ I passed ENG $0093$ which is a hard class $37.$ Since we were late to class the teacher didn$$t let us in $38.$ Now grammar books are helpful though depending on the format they may be short complex packets or long hard$-$covered books. $39.$ If I pass this test turn in my homework on time and do well on my essay I may actually pass this class. $40.$ At first I thought I would pass this class but now I$$m not so sure. $41.$ I like to read and write so I like taking college level English classes.