从方框内选择适当的词并用其正确形式填空，使短文通顺、意思完整。每空限填一词，每词限用一次。

An old saying goes, “When in Rome, do as the Romans do.” I learnt the 41 of this when I studied in Russia.
One day I invited some of my Chinese friends to a famous local restaurant in Moscow. My guests and I were 42 about visiting Red Square and happy about our meeting. We had a warm chat until the waiter told me that we were being too loud. We turned our voices 43. But this didn’t last long. The waiter came over to us two more 44 with the same message.
How 45 an impression we must have left on the local people! In China, it’s natural and important for a host to make a lively atmosphere(气氛). However, in Russia and Western 46, having a meal in a public place means you must keep quiet. You need to be polite to 47.
I felt bad about this. Even though we tried our 48, it’s very difficult to develop a new habit. Finding the 49 between cultures is much fun. I’d like to 50 my eyes and mind open.
41. 42. 43. 44. 45.
46. 47. 48. 49. 50.

41. meaning
42. excited
43. lower
44. times
45. bad
46. countries
47. others
48. best
49. differences
50. keep