用所给词的适当形式填空。
1. ____ (luck), modern medicine can help people with eye problems in less developed countries.
2. They _____ (plan) a trip to Disneyland at this time yesterday.
3. —Excuse me, where is the _____ (lady) Room?
—It's over there.
4. I am _____ (excite) about passing the final exams.
5. He speaks Chinese very well, though he is a ____ (Canada).