What___they___(do)over there yesterday?Do you know?

问题描述:

What___they___(do)over there yesterday?Do you know?

did do

did do
很简单啊,因为是 yesterday所以用过去时,因为do是动词,所以前面用助动词

did do(yesterdays 前天的意思,所以要用过去式did)

did,do

did...do

did;do