Complete the sentences about Jordan using the present perfect continuous, affirmative or negative, or the present perfect simple form when the continuous is not correct.
1. His dad and step-mum __________(help) him.
2. He __________(like) mountain-climbing since he was nine.
3. He __________(climb) the highest mountain in Australia.
4. He __________(not climb) the highest mountain in Antartica yet.
5. He __________(not go) to school very regularly this year.
6. He __________(appear) on TV a lot recently.