For learners: You won’t get direct access, but your teacher can share specific pages.
The most reliable source for the "Menschen A2.1 Kursbuch Answers" is the official (answer key). Menschen A2 1 Kursbuch Answers
If you had written “Gestern habe ich sehr früh aufgestanden” – the answer key would mark it wrong and remind you that aufstehen uses sein . For learners: You won’t get direct access, but