First, give a slef introduction in Cantonese Then, talk about your expectation and possible contributions working as an intern in MTR (in English) The whole process is about 10 mins and there are time for you to prepare the question.

Video interview, self intro, why would you apply , what you expect to learn from this programe. Possible to ask you to answer in multiple languages. Takes around 10 minutes, different department may have different stages for their summer internship position.