✔ 最佳答案
It is not compulsory education. Of course you can simply stop attending.
However, since you have signed an agreement, and Wall Street English is a business, it will have to be done by the terms of the agreement.
In order words, the following will happen:
1. If you haven't paid your course in full, Wall Street English has the right to ask you for full payment;
2. Your entire amount will be forfeited.