Translation of "Obtain" in Chinese

I am able to obtain a registration form for free.

我可以免费获取一份注册表格。

It is necessary to obtain the sanction of the authorities to enter this building.

必須獲得有關當局的批准才能進入這座建築物。

- He has such foreign books as you can't obtain in Japan.
- He has western books the like of which you can't get in Japan.
- He has foreign books of a kind you can't find in Japan.
- He has some foreign books that cannot be found in Japan.

他有些在日本不能找到的外书。