The exhibition of the newly-designed robot is well worth ___(visit)

The exhibition of the newly-designed robot is well worth ___(visit)
The exhibition of the newly-designed robot is well worth ___(visit)

The exhibition of the newly-designed robot is well worth ___(visit)
visiting
其实前面的都不重要的
重要的只是后面的
一个固定用法
be worth doing
指某物值得被做
用主动形式表被动
：）
ps
这个用法在新概念2里面六十多课有讲到哦