what school rules do you think should _____(change)?
问题描述:
what school rules do you think should _____(change)?
最好告诉我为什么这样做
答
What school rules do you think should be changed
翻译:你认为哪些校规应该被改变?
从中文上来理解,这里应该用被动语态,又should后面加动词原形,
所以填 be changed