Błędnie: The shop assistant was arranging some can goods on the shelves when she heard a loud noise. Poprawnie: The shop assistant was arranging some canned goods on the shelves when she heard a loud noise.
"Can" to oczywiście 'puszka', ale 'konserwy', 'żywność w puszkach' to odpowiednio "canned goods" i "canned food".