第 1 题 · 四级
He studies English at an intermediate level, which is a good base for further learning.
核心词：intermediate ˌɪntəˈmiːdiət adj. 中间的，中级的
他的英语处于中级水平，这是进一步学习的好基础。
一般现在时主谓宾 + 介词短语 + which 从句（主系表）短语 an intermediate level短语 intermediate stage
He studies English at an ___ level, which is a good base for further learning.
第 2 题 · 四级
Economic concerns are foremost on many voters’ minds, which the candidates all know.
核心词：foremost ˈfɔːməʊst adj. 最重要的，最先的
经济问题是许多选民最关心的，候选人都明白这一点。
一般现在时主系表 + 介词短语 + which 从句短语 first and foremost短语 foremost concerns
Economic concerns are ___ on many voters’ minds, which the candidates all know.
第 3 题 · 四级
He murmured “damn” when he found his keys missing, which made his roommate laugh.
核心词：damn dæm int. 该死；adj. 该死的
发现钥匙不见时，他小声说了句“该死”，逗得室友直笑。
一般过去时时间状语从句 + which 从句 + make sb do短语 murmur “damn”短语 not worth a damn
He murmured “___” when he found his keys missing, which made his roommate laugh.
