They still sleep with the light on, a leftover from more dangerous times.

1.They still sleep with the light on, a leftover from more dangerous times.这句话怎么翻译，里面的leftover 什么意思？
2.Many retirees v_olunteer_______ in community service and day care centres.这句话的意思，还有根据首字母不是填Volunteers 为什么S不要啊？

they still entranced with each other怎么翻译？ They still remember the happy years___in the country They've been _____ it for hours, but they still can't agree 翻译:they looked for the treasure for many days,but they still couldn't find any They took the bag out of the lake. They found that the photo on the passport was still clear. They are besides phone,letter,QQ,Email can touch with people, what have still? We have sent some books to the children in the village. However, they still need ---. 动词填空(marry)15 years,they still love each other deeply. They tell me not to keep worries to myself.But it still doesn't work. 请问o'slee是什么牌子