What does the word "it” in paragraph 3 refer to?

Students often listen attentively _________ their teachers.

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is CLOSEST in meaning to each of the following questions.

 The last time I used a public phone box was ten years ago.

The weather was too unpleasant for us to go on a picnic.

It rained heavily. However, the game continued.

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best COMBINES each pair of sentences in the following questions.

Ms. Young is a dedicated teacher. I admire her very much.

If you went to my birthday party, you will meet a lot of new friends

My new school, which you visited two days ago, is _________ the old one

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.

I think there’s a lot to say about online learning, _________?

What does the writer say about herself?

Women _________ from most housework by high technology.

It’s difficult to _________ changes in technology.

I wish I _________ English well in order to study abroad.

Mr. Nam said that

Too many tests and exams have put students under _________.