ing形式是fixing
fix的过去式： fixed；过去分词： fixed.
fix：v.使固定、安装、决定 扩展资料
His eyes were fixed on a small house in the middle distance.
他凝视着不远处的一座小房子。
Has the date of the next meeting been fixed?
下次会议的日期确定了没有？
The salary will be fixed according to qualifications and experience.
薪金将依资历和经验而定。
