作业帮新概念英语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
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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
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.
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
1.three weeks since firemen had fighten the forest fire.
另外你给的句子貌似有点问题,要么是had fighten,要么是had been fighting,不应该是had been fighten.
2. a month since the planes had finished planting seed
一个月貌似是四个星期,少年你也太不严谨了.
three weeks after firemen had fought the forest fire.
three weeks after the planes had planted seed.
three weeks after firemen had fought the forest fire.
nearly a month after the planes had planted seed.