根据语境，从方框中选择恰当的词语填空，每个限用一次。
| although, could, so that, until, should |
1. I got up early this morning __________ I could catch the early bus.
2. __________ I had a fight with my friend, we are still good friends.
3. This history museum is open __________ 5:00 p.m.
4. If you arrive late for class, you __________ say sorry to your teacher.
5. —Oh, my God! I left my pen at home. What should I do?
—It doesn’t matter. You __________ use mine.