Users practicing this topic

Post date	Users	Rates	Content
2019-10-29	alta	3	Check this topic
2019-12-23	jewel	70	Check this topic
2019-09-12	aldovega0516	76	Check this topic
2019-09-11	bishoy	70	Check this topic
2019-09-11	Aylahh	3	Check this topic
2019-09-12	aldovega0516	76	Check this topic
2019-11-03	amsar	71	Check this topic
2019-12-03	Udari	80	Check this topic
2019-03-28	Malaak	80	Check this topic
2019-10-30	shrijan	73	Check this topic
2019-02-08	Pyralis	83	Check this topic
2019-09-06	Rasna James	90	Check this topic
2019-09-12	aldovega0516	76	Check this topic
2019-06-11	alta	80	Check this topic

Topic title: 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 engin

Topic category: Integrated TOEFL Writing