Review , and .Typing PracticeCourseTouch Typing PracticeUnitSymbolsTargetMaster Complexity with SymbolsContentl . k , l . , k , l . k , . k l . l k , l k , . l , k . k l . , k l , . l k . , . k , l . k , l . k , l . l , k . , k l , . l k . l k , . k , l . , l k , l . k . k l , l . , k . k l , k . , l , k l . Start Practice Prev: Learn , and . Next: Practice , and .