第 1 题 · 高考
The child squirmed in his seat, which showed he was bored.
核心词：squirm skwɜːm vi. 扭动
孩子坐立不安，说明他很无聊。
一般过去时squirm in + 宾语从句短语 squirm in one's seat短语 squirm with embarrassment
The child ___ in his seat, which showed he was bored.
第 2 题 · 高考
Surfing needs balance and courage, which beginners train hard to learn.
核心词：surfing ˈsɜːfɪŋ n. 冲浪
冲浪需要平衡和勇气，初学者刻苦训练学习。
一般现在时动名词主语 + which 定语从句短语 go surfing短语 a surfing lesson
___ needs balance and courage, which beginners train hard to learn.
第 3 题 · 高考
Mobile phones are commonplace now, which people cannot imagine life without.
核心词：commonplace ˈkɒmənpleɪs adj. 普通的
手机如今很普遍，人们无法想象没有它的生活。
一般现在时cannot imagine + which 定语从句短语 a commonplace event短语 become commonplace
Mobile phones are ___ now, which people cannot imagine life without.
