Put the words into THREE groups (s/z/iz/)
books,doors,windows,boards,clocks,bags,pecils,desks,school,classrooms,students,teacher,couches,benches,glasses,brushes,maps,sinks,beds,caculators,villars,lamps
-/iz/..............................................................................................................................................
-/s/..................................................................................................................................................
-/z/......................................................................................................
/iz/: couches,benches,glasses,rushes
/s/: books,clocks,desks,students,maps,sinks,lamps
/z/:doors,windows,boards,bags,pencils,schools,classrooms,teachers,beds,caculators,villars
Cảm ơn cậu nhé