注意:此页面搜索的是所有试题
题目内容
(河北建筑工程学院大学英语3)
The lost boys were last seen _____ by the riverside .得分:4分
A.play
B.to be playing
C.playing
D.to play
A.play
B.to be playing
C.playing
D.to play
参考答案