With a modal auxiliary:They climbed to the top of the hill in or

With a modal auxiliary:
They climbed to the top of the hill in order that they ______have a bird’s eye view of the city.
【正确答案】：could
【题目解析】：目的状语从句的谓语常含有can，could，may，might，should，would等情态动词。目的状语从句常用引导词有in order (to)，in order that， so that，so，so as (to)等。