What does the passage mainly discuss?

In paragraph 2, the word “those” refers to ______.

According to the passage, what does “slip away” mean?

Which of the following is the best title for the passage?

What is the main idea of the first paragraph?

Which of the followings is NOT an evidence of monitoring studying?

he phrase “hacks for” in the title is closest in meaning to______.

What is the topic of the passage?

This passage is mainly about______.

What does the author imply about the United States and Canada?

In the paragraph 2, the word “accomplishments” can be best replaced by ____.

The word “roughly” in paragraph 2 is closest in meaning to______.

It can be inferred from the passage that if an item contains more carbon-14 than nitrogen-14, then the item is______.

The phrase “latchkey children” in the passage means children who ______

What is the Pareto principle?

According to the passage, why do many people never seem to have enough time to accomplish things?