填空题 1) a. Valentine's Day. b. April Fool's Day. c. Cultural Heritage Day. d. National Handshake Day. 2) a. To know National Handshake Day. b. To develop your hand-to-hand style. c. To have a better understanding of yourself. d. To convey the message you want to convey. 3) a. For the promotion of an emotional connection. b. For the purpose of handshake practice. c. For the sake of a business situation. d. For the practice of expressing love