{"answers": "C", "options": ["f : oh , you have been a bus driver for about one year .", "f : you have been a bus driver for about 10 years .", "f : wow . you have been a bus driver for about 11 years .", "f : i have been a bus driver for about 11 years ."], "article": "f : so , how long have you been driving this bus ? m : for about a year . but before i drove this bus , i had been driving buses for 10 years .", "id": "dev_681"}