It would be past tense because when you say something occurred you are saying that it has already happened
<span>1940s 1970s 1980s 1990sum 70's.
i think
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“ teens need adequate sleep and REM sleep to rebuild long term memory for learning and , focus attention for driving and maintaining health and fighting obesity.”
Answer:
an idea or feeling that a word invokes in addition to its literal or primary meaning.
Explanation:
