Several fields are mandatory to fill in in our case.请问这句话to fill需_英语解答

Several fields are mandatory to fill in in our case.
请问这句话to fill需要写为to be filled

人气：241 ℃　时间：2020-04-10 07:39:19

解答

需要,从逻辑关系上讲,这就是被动的,所以应用被动语态.我也感觉要，我是从有道网上看到的句子！