At one time we had about eighty people here who did nothing but ___ into his family history.(D)A.to research B.researched C.researching D.research
问题描述:
At one time we had about eighty people here who did nothing but ___ into his family history.(D)
A.to research B.researched C.researching D.research
答
应该是not do but do的句式。
从前这80个人什么也没做,只是调查了他的家庭历史。
才疏学浅,仅供参考。
答
do ...but do
前面不是do而是其他动词的话就是 动词..but to 动词
以前我们大约有八十来个人不做其他事,只是调查他的家庭史