Answer:
Keagan hates going to Advisory; in fact, he would rather chew off his little finger than attend that class for three days in a row.
Writing lots of sentences makes me stronger; it’s getting me ready to conquer the world.
Greg is getting stranger every day; on the other hand, the lessons are getting easier.
The semicolon is much easier to understand and use compared to the comma; the semicolon has only a few rules.
Step-by-step explanation:
The semicolon is a punctuational mark used to connect two independent clauses that are closely related in thought. Another way to connect independent clauses is by a coordinating conjunction preceded by a comma. A semicolon and coordinating conjunction can't be used at the same time.
The first sentence consists of only one independent clause, which is why there is no need for a semicolon there.
The second, third, fourth, and sixth sentences consist of two independent clauses that are not connected by a conjunction. This is why we should add a semicolon there (as shown in the Answer section).
The fifth sentence consists of two independent clauses, but the conjunction and is already used to connect them. This is why a semicolon is unnecessary here as well.