27．He asked who was the man on. A．operated B．to operate C．operating D．operate——青夏教育精英家教网—

摘要：27．He asked who was the man on. A．operated B．to operate C．operating D．operate

网址：http://m.1010jiajiao.com/timu3_id_3180252[举报]

He asked who was the man ________ on.