1. Correct the mistakes. 1. I has been to the seaside. 2. She has see a camel. 3. They have went to the station. 4. We have plan our summer trip. 5. He have done the shopping. 6. You has travelled by ship. 7. My brother has join the group.

1. Исправление ошибок:

1. I have been to the seaside. (Местоимение 'I' требует вспомогательного глагола 'have' в Present Perfect).
2. She has seen a camel. ('see' — инфинитив, в Present Perfect требуется причастие прошедшего времени 'seen').
3. They have gone to the station. ('went' — простое прошедшее время, в Present Perfect требуется причастие прошедшего времени 'gone').
4. We have planned our summer trip. ('plan' — инфинитив, в Present Perfect требуется причастие прошедшего времени 'planned').
5. He has done the shopping. (Местоимение 'He' требует вспомогательного глагола 'has' в Present Perfect).
6. You have travelled by ship. (Местоимение 'You' требует вспомогательного глагола 'have' в Present Perfect. Слово 'has' было неверно написано).
7. My brother has joined the group. ('join' — инфинитив, в Present Perfect требуется причастие прошедшего времени 'joined').