确认答案

qiufeng1990

In the mid-1920's the Hawthorne Works of the Western Electric Company was the scene of an intensive series of experiments that would investigate changes in working conditions as to their effects on workers' performance.
A.that would investigate changes in working conditions as to their effects on workers' performance
B.investigating the effects that changes in working conditions would have on workers' performance
C.for investigating what are the effects in workers' performance that changes in working conditions would cause
D.that investigated changes in working conditions's effects on workers' performance
E.to investigate what the effects changes in working conditions would have on workers' performance

这题标准答案是B

B 中的数不一致 the effects that CHANGES (change)
Only D is correct?

pgclt

try to read the sentence again, "changes" is a noun here in the adjective clause modifying "the effects".


D.  "conditions's" is not correct. it also seems quite awkward.

qiufeng1990

gottu. 总结一条规律; 动词考题先找分词选项,如果不是固定搭配