She seemed terribly nice, she looked exactly like the mother of one of his best school best friends welcoming him into the house for the Christmas holidays.

She- noun

seemed- verb

terribly-adverb

nice-adverb

Looked- verb

exactly-adverb

like- adjective

the- definite article

of- preposition

one- noun/pronoun

his-  pronoun

best-adjective

school- noun

friends- noun

welcoming- verb

him- pronoun

into-preposition

house: noun

for: adjective

christmas: noun

holidays: noun