Took crayons and made beautiful, homemade get-well cards for the children in the hospital. (5 points)

(a) this sentence is complete and correct. it does not need any revision.

(b) this is a comma splice. add a conjunction after the comma and before the word homemade.

(c) this is a fragment without a predicate. add a verb to show what the subject is doing.

(d) this is a fragment without a subject. add to the beginning to show who was doing the action.

quite an interesting way to teach topic sentences, because the answer to this question is the best definition of a topic sentence that one can present, it is as if answering the questions taught you how to do it, this is some real teaching, it is terribly well-done.

the topic sentence in this paragraph is:

topic sentences writers stay on track and keep a paragraph from becoming an aimless collection of sentences about an idea.

which incidentally tells you what a topic sentence should be.

the answer is "began" because it is a action that can be done