Joe's mother hugged him tightly before the big race. him is the underlined word

That is because "him" is the subject in the sentence.

Object of the prep

either online or traditional classroom can work for students. which is better will depend on students and teacher. students may have trouble following a lesson in classroom while they can study at their own pace online. other students may have trouble staying focus on their own in online classes. teachers are more used to classroom teaching but they may also be more worry about their jobs teaching online classes and work harder.