Sure! Here are the answers based on the instructions provided in the document:

**Part A. Phonetics**
I.
1. A. gravity
2. C. walked
3. A. started

II.
1. C. Venus

**Part B. Vocabulary and Grammar**
1. think people (live) **will live** on the Moon in 2080.
2. Last week, a schoolboy (see) **saw** something in the sky as he was walking home.
3. My father (have) **had** dinner when he heard a loud noise.
4. Would you like (visit) **to visit** another planet or a space station?
5. I think we need to find new home in the future. One option is (live) **to live** on another planet.
6. Our planet, Earth, is becoming more and more (CROWD) **crowded**.
7. There was “a bright light” on the sky. Then it (appear) **appeared**, and I couldn’t see it anymore.
8. Humans can’t live on some planets because they don’t have enough oxygen to (BREATH) **breathe**.
9. Let’s make a (PREDICT) **prediction** about where people will live and won’t live in the future.
10. Jane was doing exercise when she suddenly saw a UFO. It was big and (TRIANGLE) **triangular**.

Feel free to ask if you need further help!