Question

【题目】Helena's father was so nervous 'that he got up to have a look out of the window almost ______ .

A. each other hour B. each two hours

C. every other hours D. every two hours

Answer 1

【答案】D

【解析】句意：海伦娜的父亲看起来很紧张，他每两小时都会起来朝窗外瞧瞧。在表示“每两（三、……）个……”时，只能用every，故排除A、B两项；C项必须用every other hour才正确。