Question

【题目】I have to get up early every morning. It's one of the ________ (rule) of my family.

Answer 1

【答案】rules

【解析】

句意：每天早晨我不得不早起。这是我家的规定之一。one of＋可数名词复数，意为“……之一”为固定句式，所以需把rule变为复数形式rules。故填rules。