题目内容：

新概念英语2册62课问题.
1.firemen had been fighten the forest fire for nearly three weeks.
意思是：消防员用了3个星期就火.
帮我改成：消防员救完火后的3个星期.
2.the planes had been planting seed for nearly a month.
意思是：飞机用了3个星期播种.
帮我改成：飞机播种完成后的3个星期.