Did you predict that many students up for the dance petition?
A. would sign
B. signed
C. have signed
D. had signed
网友回答
(答案→)A. would sign
B. signed
C. have signed
D. had signed
解析：
从did和predict看出此句说的是从过去的时间看即将发生的事,即过去将来时,故用will的过去式would表示过去将来时,选A would sign.意思为“你预测到会有许多学生报名参加舞蹈比赛么？”