作业帮I don't know what I can do for you 为什么用what不用that
来源：学生作业帮助网 编辑：作业帮 时间：2024/07/14 12:10:34
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I don't know what I can do for you 为什么用what不用that
I don't know what I can do for you 为什么用what不用that
I don't know what I can do for you 为什么用what不用that
what引导的宾语从句,what可以在从句中作主语或宾语,在此句中就充当宾语.I can do what for you
而that引导名词性从句时没有实际含义,也不充当句子成分
缺宾语用what，而that指代同位语或是、、、
I don't know what I can do for you 意思是：我不知道能为你做些什么
I don't know that I can do for you ：我不知道我可以为你做事
I don't know（ that I can do for you）从句
i don't know what i can do for you 意思是，我不知道能为你做些什么
i don't know that i can do for you 意思是，我不知道我能为你做