Users practicing this topic

Post date	Users	Rates	Content
2018-11-26	toeflbeginner	75	Check this topic
2016-08-26	heidary-222	80	Check this topic
2018-09-15	SOUMEDHIK	73	Check this topic
2018-09-21	luga	80	Check this topic
2014-10-09	kalyanil1622	70	Check this topic
2018-10-15	Salu	80	Check this topic
2016-12-10	sh.ghorbanirez…	61	Check this topic
2015-02-06	france79	90	Check this topic
2017-01-17	mahboubeh	81	Check this topic
2018-10-23	Velda	87	Check this topic
2016-10-07	RSudhir	66	Check this topic
2016-08-16	mariem	69	Check this topic
2017-07-19	raghu18	83	Check this topic
2016-10-07	donya goodarz	60	Check this topic
2016-09-14	Alale7474	83	Check this topic

Topic title: TPO 09- Car manufacturers and governments have been eagerly seeking a replacement for the automobile's main source of power, the internal-combustion engine. By far the most promising alternative source of energy for cars is the hydrogen-based fuel-cell en

Topic category: Integrated TOEFL Writing