Trees are important _______ us.Planting trees is important _

Trees are important _______ us.Planting trees is important _ planting more trees is very important ___ people 英语作文 .Trees are important living things . 英语作文 .Trees are important living things 英语翻译Trees are useful to us in three very important ways.They Old trees aren't important ,are they 怎样回答 以 Why are trees important 写一篇英语作文 Old trees aren't important ,are they?怎样回答? Some people don't know how important trees are ( ) humans. Important trees people are to very(连词组句) they are planting trees now是什么意思 英语作文 Planting trees