Which is not an acceptable correction to the common run-on sentence?

Which sentence contains an error of subject-verb agreement?

A dependent clause:

Identify the predicate in the following sentence: "Jim is going to the store to buy eggs."

"Each piece of data should be recorded, so the scientists can learn from them." What type of error is present in this sentence?

Which of the following CANNOT correctly be used between two independent clauses?

A complex sentence requires an independent clause and one or more ...

"The abandoned puppy climbed out of the box." What part of speech is "abandoned"?

"Hey, where'd you get that dress?" What part of speech is "Hey"?

True or false: A compound sentence is always longer than a complex sentence.

"Isabelle was very angry." Based on its purpose, what type of sentence is this?