How long did it take for you to get used to the environment?
"その環境に慣れるのにどのくらいかかりましたか" は英語で
- How long did it take for you to get used to the environment?
- How long did it take for you to adapt to your surroundings?
- How long did it take for you to get accustomed to a new environment?
といえます。
短くいえば
- How long did it take for you to adjust? (これをよく使います）
- How long did it take for you to get accustomed?
- How long did it take for you to get used to it?
アメリカ合衆国 
