1、He was eager to go to the hospital to see his stepmother,______ he loved as his own mother.
A.that B.which C./ D.whom
答案选D 也可以 但不是 最佳 答案 whom 指代 his stepmother这个人
B.which 可以 指代 职业 身份 这里 指代 的 是 his stepmother这个身份
再如 she has become his stepmother ,which she wanted to be.
2、The old man has four sons,and ___ are college students.
A.four of them B.all of them C.three of whom D.all of whom
这道题选B.如果选D,句子中应去掉 and 变成非限制性 定语从句
3、_______ his technical knowledge was limited,the old worker has a lot of experience.
A.since B.unless C.as D.although
选D我没有疑问,因为这是让步状语从句 如果用as 语序不对 应该是 limited as his technical knowledge was
还有when译作“既然,与 主句 有 逻辑问题 所以 错