What’s the difference between “in time” and “on time”? What do you call a person who cuts a man’s hair? What do you call an animal doctor? Beat the clock and answer as many spelling, vocabulary and grammar questions as you can in this 60-second quiz! Johnny Grammar’s Word Challenge is a quiz for English learners to test common vocabulary, spelling and grammar that appear in everyday English. Main features: - 3 difficulty levels – Easy, Medium, Hard - 3 categories – Words, Grammar, Spell