Which of the following sentences uses parallel structure it is important to study staying on top of your homework and go to class my three favorite activities are writing reading and go to the library there's nothing we like better than to relax watch movies and hang out when you make friends you should stay in touch smile and be nice

There are actually TWO correct answers given in this question; which are the third AND fourth answer choices:

Answer choice 3:

"There's nothing we like better than to relax, watch movies, and hang out."

Answer choice 4:

"When you make friends, you should stay in touch, smile and be nice."

Let us review the answer choices.

Consider the first answer choice:

"It is important to study, staying on top of your homework, and go to class."

This answer choice does NOT use parallel structure. To make this answer choice use parallel structure, we would need the sentence to:

"It is important to study, stay on top of your homework, and go to class." ; OR:

"Studying, staying on top of your homework, and going to class are important."

Let us examine the second answer choice given:

"My three favorite activities are writing, reading, and go to the library."

This answer choice does NOT use parallel structure. To make this answer choice use parallel structure, we would have to rewrite the sentence as:

"My three favorite activities are writing, reading, and going to the library."