Who is ___ the role of Tom in the play?这里空格处
问题描述：
Who is ___ the role of Tom in the play?这里空格处
Who is ___ the role of Tom in the play?
这里空格处填act什么形式?
答
acting
act the role of 扮演.的角色为什么要加ing，进行吗？原形也总觉得不行。因为前面有助动词is, is 和v-ing 形式一起构成进行时态