3 Complete the sentences with words from the box. cures energy satellites source technology theory 1 The sun is the most important of light for our planet. 2 At the moment, most of our comes from oil. 3 We will need to find for new diseases. 4 Gödel’s of time travel says that we will need to travel faster than the speed of light. 5 American military is becoming more and more advanced. 6 in space carry many different kinds of equipment

1 The sun is the most important source of light for our planet.
- We can see that the sentence is talking about where the light comes from. The word "source" means where something comes from, so the option "source" is the correct word to complete the sentence.

2 At the moment, most of our energy comes from oil.
- This sentence is discussing where our energy currently comes from. The word "energy" means the power or ability to do work, and the word "oil" is a known source of energy. Thus, the word "energy" is appropriate in this sentence.

3 We will need to find cures for new diseases.
- The sentence is talking about finding solutions or remedies for new illnesses. The word "cures" refers to finding methods or medications that can treat or heal diseases, so it is the appropriate word to complete the sentence.

4 Gödel’s theory of time travel says that we will need to travel faster than the speed of light.
- Here, the sentence mentions Gödel’s theory. A theory is an idea or explanation that tries to explain something. The word "theory" is the correct choice as it aligns with the context of Gödel’s theory of time travel.

5 American military technology is becoming more and more advanced.
- The sentence is discussing the advancement in the technology used by the American military. The word "technology" refers to the application of scientific knowledge to solve practical problems, and in this context, it is the appropriate word choice to complete the sentence.

6 Satellites in space carry many different kinds of equipment.
- The sentence talks about the purpose of satellites in space. Satellites are objects in space that are used to gather information or transmit signals, and they usually carry different types of equipment. Hence, the word "satellites" is the correct word to complete the sentence.