cut down trees free or freely(免费）

cut down trees free or freely(免费） cut down trees at 是Don't cutting down trees. 还是Don't cut down trees. ? we must ask people not to cut down trees =we must -----people -------cutting down trees. cut down and burn a lot of trees什么意思? Millions of trees are being cut down to make paper. We should stop people from (cut)down trees. Must we cut down the trees? No.we ____. We must stop___ down trees.A.cutting B.cut in great danger,we cut down many trees every year. Millions of trees are being cut down now.是什么语态? Trees are very important.We can't cut thenm down B cut it down C cut down themD cut down it people cut down trees,so elephants are losing their homes.cut 是过去式吗people cut down trees,so elephants are losing their homes.cut 是过去式吗 Trees are our friends.Don not______(cut them dowm,cut down them) we must stop -------(cut)down the trees.cut是不是用原形 there will be fewer trees in the future if people cut down trees?改为疑问句 look who ______(cut) trees over there?--they ______ down a lot of trees last sunday. lots of trees were cut down and some kinds of trees () A.were disappeared B.disapeared