Sentence:  It is Field Marshal Montgomery 's belief that in most Western countries about 60 per cent of the people do not really care about democracy or Christianity ; about 30 per cent call themselves Christians in order to <WSD>keep</WSD> up appearances and be considered respectable , and only the last 10 per cent are genuine Christians and believers in democracy . 
Meaning of the word marked with <WSD> tags:  keep in safety and protect from harm, decay, loss, or destruction