完形填空 急

完形填空 急
Every school has its own set of rules to__1__students disciplined（遵守纪律的）.The rules change from one school to another.Some schools are __2_ stricter than others.There are also some rules that look strange or funny to us.Here are some funny school rules:
Japanese rules
Most schools demand that students ___3__uniforms,such as sports suits or skirt .But many Japanese schools __4_demand the colour of underwear Other Japanese schools tell students that they may not go to movies,leave home after sunset or play video games _5__permission from the school.
Different shoes in US
For safety at some US schools,students must have a pair of indoor shoes to change into at school every day.This makes sure students won't_6__on the slippery floors and keeps the school clean.Bubblegum chewing is not allowed in many US schools buildings,_7___it is difficult to clean up.And if students chew( 嚼） gum____8_,they may not focus on their study .
No strange hair in UK
Strange hairstules are not allowed in some __9_.But they might _10__studeents to wear certain hairstyles during the World Cup years.
1.A keep B let Csolve
2.A little B much C very
3.A ptu on B take off C wear
4.A had to B even C by far
5.A without B with C have
6.A fall over B stand up C fall down
7.A as if B as C so
8.A out of class B outside of class C in class
9.A American schools B Chinese schools C British schools
10.A let B allow C have
能的话清找出所涉及知识点