Respuesta :
The structure change that is apparent in this passage from "Death of a Moth" by Virginia Woolf is switch from present tense to past tense.
"Death of a Moth" is an essay written by Virginia Woolf that focuses on the idea that life is a constant struggle, even though people know that death is inevitable. In this excerpt from the essay, the speaker switches from present tense to past tense. While Simple Present Tense is used in the first sentence ("they are (...)"), Simple Past Tense is used in the second one ("seemed to be (...)").
Switching from present tense to past tense would be the only logical option. I hope I've helped!