Simple past tense and past participle of look.(verb)
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Use "looked" in a sentence
"Jeff told me I was his hero because the grocery department looked so good the rest of the store looked "
"Claude noticed that David looked at him as if he were very much pleased with him, looked, indeed, as if something pleasant had happened in this room; where, God knew, nothing had; where, when they turned round, a swarm of black flies was quivering with greed and delight over the smears Willy Katz body had left on the floor."
"He just looked at me and _looked_ at me, and made me say it again, and then -- then he just walked away without looking back."