Answer:
The star was a spotlight shining on them.
Step-by-step explanation:
You could write pretty much anything for this as long as it's a metaphor.
If you don't know what a metaphor is that might be why you are struggling with this.
Definition of a metaphor from Merriam-Webster Dictionary:
A metaphor is a figure of speech in which a word or phrase denoting one kind of object or action is used in place of another to suggest a likeness or analogy between them: the person being addressed in "you're a peach" is being equated with a peach, with the suggestion being that the person is pleasing or delightful in the way that a peach is pleasing and delightful. A metaphor is an implied comparison, as in "the silk of the singer's voice," in contrast to the explicit comparison of the simile, which uses like or as, as in "a voice smooth like silk."
Basically it's a comparison that does not use "like" or "as"
Hope this helps!