Which sentence contains a misplaced modifier?
a. cheese, pumpkin seeds, and apples all make delicious treats for mice.
b. many a mouse has found scraps of food in the barn.
c. a mouse uses a lot of energy, so it eats a lot of food.
d. sometimes a mouse skitters through the barn with a little squeak and finds something to eat.

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.

dickinson punctuation and lines in her poems to establish a rhythm. each reader will naturally find themselves reading the poem in the same way. she uses the repeating question marks and exclamation points to convey the passion in her words. shelley uses punctuation to paint a picture in the reader's mind. for example, the ellipses after "stand in the dessert" evoke a silence, as it would feel in a deserted, old place.