Users practicing this topic

Post date	Users	Rates	Content
2017-10-02	zhrnrz1992	88	Check this topic
2016-10-06	naznazu	80	Check this topic
2016-08-14	ameri	86	Check this topic
2018-09-23	zahra.mz70@gmail.com	75	Check this topic
2022-04-25	Sommy2021	80	Check this topic
2018-08-19	shirinn91	66	Check this topic
2016-10-22	nfsedaghat	86	Check this topic
2018-08-18	mahsa92	81	Check this topic
2022-02-15	Alia Mahbob	85	Check this topic
2017-12-23	danae27	81	Check this topic
2018-08-03	Aftab1	60	Check this topic
2018-03-22	sandi_26	80	Check this topic
2018-06-30	Mehran123	76	Check this topic
2018-07-17	ersinb1	76	Check this topic
2017-11-09	fahim135	65	Check this topic

Topic title: Starting in the 1960s and continuing until the 1980s, sailors in Russian submarines patrolling the North Alantic and Arctic Ocean would occasionally hear strange sounds. These underwater noises reminded the submarine crews of frog croaks, so they called t

Topic category: Integrated TOEFL Writing