（1）day，it，rainy It was a rainy day It was a rainy day . （2）street，fall down，old man，when cross An old man fell down when he crossed the street An old man fell down when he crossed the street . （3）people，there，what，see，some，happen Some people saw what happened there Some people saw what happened there . （4）boy，stand up，help A boy stood up to help the old man A boy stood up to help the old man . （5）classmate，he，mine，Tom He was my classmate Tom He was my classmate Tom .

连词成句。请根据图画场景和各题提示词创写语法正确、符合语境的完整句子。