语法题目请解释分析谢谢
Some forms of physical education( )by schools across the nation.
A.have been practiced
B.practiced
C.which practiced
D.have practiced
参考答案:A.have been practiced
被动语态
Some forms of physical education( )by schools across the nation.
A.have been practiced
B.practiced
C.which practiced
D.have practiced
参考答案:A.have been practiced
被动语态