单项选择He_____whentheUFOarrived. A.wassleeping B.were...
问题详情:单项选择He_____whentheUFOarrived. A.wassleeping B.weresleeping C.hasslept D.isasleep【回答】A知识点:动词时态题型:选择题...
问题详情:单项选择He_____whentheUFOarrived. A.wassleeping B.weresleeping C.hasslept D.isasleep【回答】A知识点:动词时态题型:选择题...