正常语序是
we could expect good decisions from a person
后面不缺主语和宾语,所以from不能省略
当然可以把from移到后面
Daniel,we thought you were an adult,a person whom we could expect good decisions from.你好，请问你说的后面不缺主语和宾语是指哪个词后面，另外whom在此句中是做宾语修饰a person 吗whom引导的从句中不缺主语也不缺宾语主语是we宾语是good decisionwhom在从句中指代a person, from whom在从句中做宾语补足语