The people _____ moving like waves of the sea.
The people _____ moving like waves of the sea.
Explanation
"People" is plural, so the verb must be plural too.
"Were" is the past tense plural form of "to be," matching the sentence context.
"People" is plural, so the verb must be plural too.
"Were" is the past tense plural form of "to be," matching the sentence context.