单项选择题
According to the author, small talk is often used（）
A．to invade other’s private affairs B．to share a secret between intimate friends C．to open and maintain channels of communication D．to protect one’s own privacy
填空题 A．examine B．extra C．excuse D．exhibition
单项选择题 The little girl held ______ in her hand. J
单项选择题 This kind of coffee is different
