________(citizen) of each of these countries take advantage of this time 8. ________(express) their concerns for world peace.

　　Anyone can participate in World Hello Day. You 9. ________(simple) have to say hello to at least 10 people during that one day. You are supposed to send a message of openness and goodwill to others, 10. ________ the creators of the holiday hoped this small gesture alone could help settle disputes and prevent conflicts.

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