【题目】______________ his team had won, his face lit up at once.
A.Knowing
B.When knowing
C.After knowing
D.When he knew

【答案】D
【解析】句意：当他听说自己的球队赢了，他的脸立刻高兴了起来。因为前后句的逻辑主语不一致，前面一句的主语是he后一句的主语是his face，所以不能用非谓语动词，只能用状语从句。故选D。