Multiple choice general knowledge math & puzzles Read the sentence to find out whether there is any grammatical error in it The brakes and steering failed and the bus ran down the hill without anyone being able control it. No error. Reveal answer Fill a bubble to check yourself C Correct answer Explanation The phrase 'being able control it' is missing the infinitive marker 'to'. It should correctly read 'without anyone being able to control it'. The other segments are grammatically correct.