先阅读短文，掌握其大意。然后从方框中所给的词中选出恰当的10个，并用其适当形式填空，每个此限用一次。
that; clear; with; learn; travel; try;
from; rain; I; strange; he; heavy |
After almost 24 hour of traveling, I was in Beijing. I was ____ with some of my classmates. We were all tired and dirty. Even at the airport, it was ____ that we were in a foreign country which was very different ____ our own. For us, the language sounded very____ . Although nervous, I felt excited.
It’s amazing____ there are so many places of interest (名胜) in Beijing. We visited the Forbidden City, Tian’anmen Square and the Great Wall.
One day, Li Bo, a Chinese friend of ____ , took us to visit a village. On the way, it rained ____ . we were wet when we arrived, but we were happy to see the mountains in the____ . They were really beautiful. The China Study Tour made me ____ a lot about the country, the people I met and even myself. It was the most valuable (宝贵的) part of my college life. I often encourage my friends to ____ a study tour. There’s no other way to learn so much in only four weeks!
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，则
的子集的个数是（ ）