There is only an hour left.Please _take you

There is only an hour left.Please _take you Bob ,there is only half an hour left for the coming train. There is only loneliness left wihtout you only a quarter of an hour left There's still half an hour left.与there is something wrong?中的 ·There's still half an hour left.与there is something wrong?中 Hurry up, please. There is only __ time left. A. a little B. There is only a little time left. Please hurry up.There is ( ) time left. If there is only one day left in you life ,what will you do? There is only one left这里的left是什么词性 There's still half an hour left. 中的left是什么意思,是什么词性?