<span>B) Douglass suffers mental torture as well as physical violence.
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Answer: the subject and verb must agree with one another in their tense.
Explanation: In order for a sentence to be grammatically correct, the subject and verb must both be singular or plural.
the subject and verb must agree with one another in their tense.
"Keep," this is because the adverb always modifies the verb, and a verb is a action, and keeping is an action.