Question

highlight the subordinating conjunction (\swabi\) in the sentence.
after he spent the day at the museum, ralph wiggum needed to
take a nap.

Explanation:

Subordinating conjunctions (SWABI) introduce subordinate clauses. In the sentence "After he spent the day at the museum, Ralph Wiggum needed to take a nap," "After" is the subordinating conjunction as it introduces the subordinate clause "he spent the day at the museum" and shows the time relationship to the main clause.

Answer:

After