Tom succeeded in doing experiment,____was expected by his instructor.A.as.B.so.C.like.D.what

问题描述:

Tom succeeded in doing experiment,____was expected by his instructor.A.as.B.so.C.like.D.what
请解答并分析每一个选项选择或者不选的理由.

Tom succeeded in doing the experiment,__as__was expected by his instructor.
答案是AS,解释为which._as__was expected by his instructor是定语从句部分.BCD都是凑数的,用来迷惑你.为什么可以看成是定语从句呢?因为as指代tom成功这件事。