With his eyes ______ on the family album, he thought of the fun he had when he lived with his parents.

A．fixing

B．fixed

C．to be fixed

D．being fixed

茶馆茶艺师对销售中的茶叶要“八知道”指的是要知道茶叶的产地、价格、质量、性能、特点、用途、冲泡方法、（）。

A、保管措施

B、品茶方法

C、茶文化知识

D、选择茶具要素