The students stopped ______ when the teacher went into the classroom. 

AI tools are very useful. They are popular in the world nowadays.

→ AI tools, which………………………………………...……………………………

What is the passage mainly about?

II. Write a paragraph (about 100-120 words) about how to protect natural wonders effectively (1.0 point)

You can use these suggestions:

- Raising public awareness about the importance of conservation.

- Reducing human impacts, such as limiting littering and overexploitation of resources.

- Establishing conservation areas and enforcing strict regulations.

Circle the letter A, B, C, or D to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions.

Circle the letter A, B, C, or D to indicate the word that differs from the other three in the position of stress in each of the following questions.