1.a 2.concerned 3.planting 4.really 5.have agreed 6.difficult 7.were blew
8.On 9.saying 10.determination
11.making 12.She 13.really 14.refered
15.Immediately 16.a 17.rivers
18.to plant 19.on 20.achieved
答案仅供参考，如果有错误的地方，还望谅解！
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