The Attributive Clause who, whom, whose, that, which, as when, where, whyLooking at examples:The number of peoplewho / that lost homesreached as many as 250,000. The boy( who / whom / that ) we saw yesterdaywas John’s brother. It sounded like a trainwhich / that wasgoingunder my house. The car( which / that ) my uncle had just boughtwas destroyed in the earthquake.