单选题 The ground on which the church stands has always been regarded as sacred.
【正确答案】 B
【答案解析】serious：严重的，严肃的；holy：圣洁的；religious：宗教的，虔诚的；saintly：圣徒般的。题中sacred意为：奉献给神的，宗教的。故答案为C。