When i present things i first like to write what im going to say on note cards then i practice with my family then once i got everything ready then i just rewrite the topics that im going to be presenting about instead of just reading off of the note cards then after i do that i just keep reading what im going to be sayin g so that i dont miss anything.
"sport's" is incorrect because there is an <span>apostrophe s which means that it's supposed to be possessive. Sport is not possessing anything. So it should instead be sports.
I believe this is the answer. If the writing was connected, sentences would already be combined. Varied writing and lengthy writing usually has nothing to do with sentence combination.</span>