第 1 题 · 四级
This dictionary is authoritative, which the students rely on for spelling.
核心词：authoritative ɔːˈθɒrətətɪv adj. 权威的
这本词典很权威，学生们拼写时依赖它。
一般现在时主系表 + which 从句 + rely on短语 an authoritative source短语 authoritative information
This dictionary is ___, which the students rely on for spelling.
第 2 题 · 四级
I inferred from her words that she was angry, which the others did not notice.
核心词：infer ɪnˈfɜː v. 推断，推论
我从她的话推断她生气了，其他人没注意到。
一般过去时infer…from… + that 宾语从句 + which 从句短语 infer from短语 infer that
I ___ from her words that she was angry, which the others did not notice.
第 3 题 · 四级
The fire flared up suddenly, which made everyone step back quickly.
核心词：flare fleə v. 闪耀，突然燃烧
火突然旺了起来，大家赶紧后退。
一般过去时动词短语 flare up + which 从句 + make sb do短语 flare up短语 a solar flare
The fire ___ up suddenly, which made everyone step back quickly.
