请问A man sat alone

请问A man sat alone A ______ man sat there alone,______ the school gate. The old man sat in the corner,___ alone. the poor old man sat there alone,----(watch)the children pla The old man lives alone.He feels ____.A.alone B.lonely C.lon A wise man is never less alone than when alone!这里的never less Leave it alone man. A big,strong man went into a bar,sat down. A man came and sat near him(一般现在时） There an old man sat,smoking a pipe分析下 This bride,______(dress)in white,sat in a room alone. Sat语法 请问为什么a不对?