Tounderstandthesentence,youshouldanalyzeitsparts________.

句子写作：Thepianoplayerbegantosingloudly.

句子写作：TodayatschoolMrMoorebroughtinhispetrabbit.Heshowedittotheclass.

Theclothhadanaturallookwhichperfectly________theimageLaurasought.

Howmanyformscanarticlesberoughlydividedinto?whatarethey?