At school there are strict rules————.为什么是to be kept

At school there are strict rules————.为什么是to be kept At school there are strict rules--------- A kept B being kep in the school there are _____rules to be kept.为什么是填hard而不是en in the school there are _____rules to be kept.为什么是填enough而不是 the following are school rules except“——”选什么? 为什么是must be kept而不是must to be kept 有be strict at,be strict to,be strict about这种搭配吗? There are lots of rules at Selinas school.She agrees with so what are the rules at your school为什么用介词at不用in they ——(not be)at school last school Be nice to your friends when you are at school.是省略句吗?主句为什么没有 Parents should be strict——their children and help them to ha