Generally speaking, formal IELTS training institutions have certain protection for teachers. It depends on the teacher's academic qualifications and certificates, as well as the teacher's educational experience and students' reputation.
Among many IELTS training institutions, acaso English College has done better. Here's to share with you the audition course: the free audition course is also very affordable, and the class is not in 20 yuan, so you can prepare for the exam one-on-one with professional foreign teachers every day.
Judging whether an IELTS English training class is professional depends not only on its hardware facilities and the scale of teachers, but also on whether it has a personalized evaluation system for each IELTS student, so as to effectively judge the level of each IELTS student and teach students in accordance with their aptitude.
It is suggested that interested friends can click on the above link to experience the learning effect of online IELTS English training and make a comparison with other training courses.