A Because they do not hurt human eye B Because they are cheaper than regular one C Because they can help people at nigh D Because they can reduce the number of suicide

A has no result yet B is proved effective C is welcomed by suicides D has been refused by stations

A many suicides love blue color B the color of sky and see may calm excited people C only people with trouble in mind need blue color D blue color will definitely work to save suicides

A interested B denying C objective D indifferent

A have B made C had D crashed

A must B can C need D have to

A annoyed B interested C interesting D annoying

A paid B acquired C obtained D got

A Other B One other C The other D Another

A couldn't B must C can't D have