How does connell build suspense in this excerpt ?

Read the passage: canines may not be the deepest thinkers in the world. but perhaps that's for the best. the life of a dog—sitting alone all day, waiting for everyone to come home—can be pretty boring. super-smart animals would probably get totally stressed out, says university of pennsylvania researcher james serpell. look at it this way: if dogs were any smarter, they probably wouldn't choose to hang around with us. which best describes the tone of the passage?

Read this sentence: devon was nervous at the thought of speaking in front of a large audience. which word could a translator use to replace the underlined word without changing the meaning of the sentence? a. angry b. excited c. d. worried

What sign post goes with the quote goodnight goodnight parting is such sweet sorrow. that i shall say goodnight till it be morrow