Which of the following sentences has mixed verb tenses (and is therefore incorrect)

How does the poem's mood and tone change in each of these stages of “o captain! my captain! ” by walt whitman? (i need an answer asap )

Which group or words is not a phrase? a.) leaving behind the dog b.) because she smiled at me c.) smashing into a fence d.) before the first test e.) pushing the sofa

Read this sentence from the story of my life by helen keller. the most important day i remember in all my life is the one on which my teacher, anne mansfield sullivan, came to me. which element of plot does this sentence best represent?