Find out roughly which TOCFL level you are at. Each question is a Chinese sentence in Traditional characters with one word missing. Choose the word that fits. The sentences start at Novice 1 and get harder as you go. Everything is in Chinese, so no English is needed.
Please don't guess. If you are not sure, tap I don't know. A wrong guess takes a point away, so honest answers give you a more accurate level.
A level counts as passed when your score for that level reaches about two thirds of its questions.