Austin had made no grammar mistakes in his thesis paper but ______ had he well prepared f

外语类 已帮助 人

Austin had made no grammar mistakes in his thesis paper, but ______ had he well prepared for it.

A.so

B.neither

C.both

D.either

请帮忙给出正确答案和分析,谢谢!

热搜:欲制备NO气体,最好的实验方法是