In Britain，the government，school leaders，teachers and parents all agree that students should wear uniforms．（66）B Birtish private schools and schools have their own school uniforms．They think it's（67）i for pupils to wear school uniforms．
School leaders normally decide if pupils will have to wear a uniform，and they（68）a
decide what it should look like．You know，no students want to wear（69）u unifroms．
Everybody wants to wear beautiful uniforms．
Leaders have to follows the rules，and they（70）c just choose anything they like．They have to（71）t of the students' feeling and taste．Here are a few（72）f leaders should consider．
1．Cost．This is the first fact they should consider．Their uniforms shouldn't be too（73）
e because it may cause problems for some families．Not all the families can afford it．
2．Sexism（性别歧视）．The uniform policy must be equally fair（公平的）for boys and （74）g ．
3．Cultrues and races．School rules must（75）a pupils from all backgrounds to wear a uniform，for example，allowing Muslim（穆斯林）girls to wear an appropriate dress and Sikh（印度锡克教徒）boys to wear a traditional headdress（头饰）．
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你想知道现在几点，可以这样问：
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假如你是John，有人打电话找你，你接听时可以这样应答：
Hello! ．
你想要感谢对方的帮助，可以这样说：
for your help．
We should not use more water than we actually need． If we do， we will not have enough water in the future． （1） It is not a difficult question to answer． If we remove more fresh water than nature replaces， we have taken too much．
Many cities run campaigns（运动）to get people to stop wasting water． They show them ways they can cut back on water use． （2） What's more， they carry out programs that offer money to reduce water use． For example， they give people shower heads and toilets that use less water． （3）
Another threat（威胁）to our water supply is pollution． When our sources of fresh water get polluted， we can no longer use this water． This also endangers（危及） the animals that depend on the water．
（4） We can save lots of water by not letting taps（水龙头） run while we brush our teeth or by turning off taps right after washing hands． By collecting cold water when were taking warm showers， we can also save water． （5） In this way， we can make full use of water．
A． However， just how much is too much？
B． There are several things we can do to save water．
C． Finally， they make laws to control the use of water．
D． We don't have to let the cold water run until it gets warm．
E． They also increase water bills for people who use too much．