电视、录像等是（）的玩具和材料。
A、语言活动
B、象征性戏
C、建构游戏
D、表演游戏
参考答案：A
主茎13叶、5个伸长节间小麦品种，其近根叶组包括1/0-7/0。
He ___ his leg when he __ in a football match against another school.
A．broke, played
B．was breaking, was playing
C．broke , was playing
D．was breaking, played
