*　EDR December #24 2019 Helicopters’ Noise Sounded

0:05　The noise of a helicopter sounded for two and a half minutes.
2:00　The O’s car passed.
2:03　The noise of a helicopter sounded.
2:27　The O’s car passed.
2:32　The noise of a helicopter sounded.
2:45　The O’s car passed.
2:46　The O’s car passed.
2:51　My neighbor Mr.O’s noise started.
3:05　The O’s car passed.
3:08　The O’s car passed.
3:12　The O’s car passed.