Group the following words into sound columns according to the final

4. Group the following words into sound columns according to the final ‘s’:

Buses, caps, smiles, sings, spots, rises, books, couches, letters, brooks, sentences, friends, snails, photographs, pictures,rooms, classmates, activities, branches, roots, meets, scales, affects, librarians, students, grades, events, feelings, instructions, reasons, arranges, beaches, brothers, handkerchiefs, bananas, sports, laughs.

/-S/                                                       /-IZ/                                            /-Z/                                

___                                                      ___                                            ___