2. Circle the correct words to complete the sentences.
(Khoanh tròn từ đúng để hoàn thành câu)
1. UFOs / Rockets are spaceships from another planet.
2. We have no possibility / condition of making our own spaceship.
3. We can't find any living craters / creatures in the solar system except for us.
4. Scientists are working to find a habitat / habitable planet.
5. The gravity / atmosphere of the Earth makes things fall to the ground when we drop them.
Bài Làm:
1. UFOs are spaceships from another planet.
2. We have no CONDITION of making our own spaceship.
3. We can't find any living CREATURES in the solar system except for us.
4. Scientists are working to find a HABITABLE planet.
5. The GRAVITY of the Earth makes things fall to the ground when we drop them.
