1) Pad around - Walk around/walk about 2) Goes off - Spoils/becomes rotten 3) Where the tea ceremony is held - Where the tea ceremony takes place/occurs/happens. 4 )Zealously - Fervently/Obsessively/Stringently... In this case they are asking why the buddhist nations don't have the same level of cleanliness. It's a little abstract. 5) Enshrine - To contain and display/To preserve in a form that will ensure it is protected and revered. Hard to say which one without full context.

1) They will remove their shoes and PAD AROUND in their socks Better: They will remove their shoes and WALK AROUND in their socks or They will remove their shoes and MOVE AROUND in their socks 2) In a hot, humid environment like Japan’s, food GOES OFF quickly Better: In a hot, humid environment like Japan’s, food GOES BAD quickly or In a hot, humid environment like Japan’s, food TURNS BAD quickly or In a hot, humid environment like Japan’s, food SPOILS quickly 3) In the room where the tea ceremony is HELD everything is absolutely clean This is correct, and it is the best way to phrase this sentence. 4) So why aren’t all Buddhist nations as ZEALOUSLY clean as Japan? That's pretty good, but if you want a simpler word: So why aren’t all Buddhist nations as OBSESSIVELY clean as Japan? 5) Said to ENSHRINE the very soul of the Japanese identity This is good too, but if you want simpler: Said to CONTAIN the very soul of the Japanese identity ...Hope this helps. Good luck!