他学习藏语已经两年了。

He has been studying ___Tibetan for two years.

这位藏族向导带我们游览了布达拉宫。

The ___Tibetan guide showed us around the Potala Palace.

她正在学习藏语，以便能更好地与当地居民交流。

She is learning ___Tibetan to communicate better with the local people.