第1个回答 2010-09-02
一楼用的是
动词不定式,语法、意思是对的,但非
宾语从句,宾语从句的说法如下:
He didn't know which one he should choose.本回答被提问者采纳
第2个回答 2010-09-02
He doesn't know which one he should choose
第3个回答 2010-09-02
He does not know which one to choose.
第4个回答 2010-09-02
He didn't know which to choose