<span>Simple Past: Rockwell painted and coloured surfaces with substances full of nanites.
</span>Past Continuous: <span>High, on the walls of which are the original </span>painting, by<span>
Rockwell.
</span>Past Perfect: Rockwell had gone<span> home; then had worked slowly on toward his painting.
</span><span>Past Perfect Continuous: Rockwell had been painting for 2 hours.</span>
The phrase "being done" in the excerpt simply means finished or completed.
Based on the content of the excerpt, we can see that the author is against illegal migrants in the United States as he calls them imported Americans.
<h3>What is an Excerpt?</h3>
This refers to the piece of writing that is gotten from a text in order to show some specific details that need to be communicated to readers about a particular topic.
Hence, we can see that further annotation of the text shows that the narrator reaffirms his belief that proper legal documents should be used to enter the United States and his prospective laborers from Switzerland have their papers processed.
Read more about Imported Americans here:
brainly.com/question/26123456
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<span>it can indicate substitution </span>
