what to do 与how to do 的区别I don't know ____________.A.what to say or do B.what to say and to do C.how to say or do D.how to say and to do
问题描述:
what to do 与how to do 的区别
I don't know ____________.
A.what to say or do B.what to say and to do C.how to say or do D.how to say and to do
答
选择A
what to do是没有问题的,因为what是一个名词性疑问词,后面无需加宾语;而how不是名词性疑问词,所以后面要加宾语,以免成分残缺.