plz give me answet of these question

Sirish is a student who works part-time on a regular roster in his aunty's seafood restaurant, together with five other permanent part-time employees. Sirish has always been paid according to the relevant award. For the last three weeks although he has worked his regular shifts, Sirish has received no payment, although Time left 0:57:20 employees have. He approaches his aunty, who tells him that things are very tough at the moment, due to the COVID-19 shutdown, and she has to cut costs. Sirish's aunty says that as he is family, she has no legal obligation to pay Sirish and she knows Sirish will understand and appreciates him working for free. Sirish is very upset as he needs the money to pay his rent and other expenses. Answer the following questions related to the case above: 1. Does Sirish have a contract of employment with his aunty? Give reasons. 2. Is Sirish's aunty in breach of contract by not paying Sirish his regular wages for the last three weeks? Give reasons. 3. Could Sirish sue his aunty for unpaid wages? Give reasons. 4. Could Sirish's aunty successfully argue that her contract with Sirish is void because it is illegal (assuming that Sirish is in breach of a condition of his student visa by working in the restaurant)? Give reasons