1) I have cycled in the park.
2)对
3）He has uploaded the vlogs to Youtube Channel.
4)对
5）对
6）We have climbed the hill to watch the sunset.
7) Shalini has competed in spelling competition.
8)对
总结： 有些题目的verb 你忘记换去 past participle，第7题 你的 competition 写错字了。
