填空题
The veteran workers are doing their best to pass 1 their technical know-how to the younger generation.
【正确答案】
1、on
【答案解析】解析：
The veteran workers are doing their best to pass on(传递)their technical know-how to the younger generation. 这位经验丰富的工人正在尽力传递他们的技术诀窍给年轻一代