✔ 最佳答案
had visited , which is a past participle ,
it indicates past or completed action or time
咁可能你會confused 點解唔用present perfect
present perfect (has visited) , which means 佢而家都仲有visit 個store
但你句句子, 雖然我唔知上文下理, 但係如果用had visited ,
which means 佢只係過去既幾個specific time 到visit過間store, 而家已經冇再去
所以就用had~.