"How often_your school sports meeting_?""Once a year."A.dose,hold B.was,hold C.is,held D.did,hold求答案并带具体解析.

问题描述:

"How often_your school sports meeting_?""Once a year."
A.dose,hold B.was,hold C.is,held D.did,hold
求答案并带具体解析.