tens of trees were cut down,no onre knew
tens of trees were cut down,no onre knew
lots of trees were cut down and some kinds of trees () A.wer
the trees were cut down by the workers.the trees
Eighty(百分之……的) of the trees here were cut down by the farmer
cut down trees at
Must we cut down the trees? No.we ____.
cut down and burn a lot of trees什么意思?
Millions of trees are being cut down to make paper.
what a terrible sight!All the trees were cut down,falling on
()trees were cut down.And many birds lost their home.
Don't cut down the group of trees on both sides of the stree
We cut down and burn__(millon)of trees every years怎么填,理由又是什么