Review X & .Typing PracticeCourseTouch Typing PracticeUnitBottom RowTargetStrengthen Below with the Bottom Row Contentl.s xs.lx sl.x. ls xl. sxl .x sl.xs .x ls ls.xs x.l .lxsl sx.ls x.lxs .x ls. xsl.x sl. sl.xs .xlsx l. ls .x l.sx s. lx .xl s.xsl Start Practice Prev: Learn X & . Next: Practice X & .