用下面的词语写一段连贯的话，至少用上其中的两个。

绝境   漫长    坚持不懈    崎岖    壮美

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根据句意及汉语提示，补全所缺单词。

1. If you are ______ (口渴的), you may have an apple.

2. Tony, you are tired so you should go to bed ______ (早).

3. The ______ (问题) is how we can get there.

4. Don't be ______ (紧张的) out and try to relax (放松).

5. I feel ______ (累的) and I want to have a rest.