Multiple choice general knowledge Which word does not belong to the group in each of the following questions? now cow low how Reveal answer Fill a bubble to check yourself C Correct answer Explanation Low is the correct answer because it is the only word without the 'ow' diphthong sound pattern shared by now, cow, and how. All three rhyming words end with 'ow', while 'low' has a different vowel sound despite the spelling.