it need to cut down a little.为什么不是need cutting

it need to cut down a little.为什么不是need cutting cut it down是什么意思 do you have ____ problems _______?(some,any/ cutting it down,to cut it down.) got down to cutting the tree.Soon he cut it down and pulled it 是cut down it还是cut it down You need to cut _____ sweets in order to loYou need to cut _____ sweets in order to lose weightA.off.B.out.C.down.D.up they don't need to cut down as many trees .中的as 用法 cut down,cut down to,cut down on,cut off有什么区别 need to be down cut off ,cut down的区别IT's a great shame that all those old trees are going to be ____.A.CUT UP B.CUT OFFC.CUT DOWND.CUT OUT this'll cut you down to Trees are very important.We can't cut thenm down B cut it down C cut down themD cut down it You need this to cut cloth. cut down Cut down cut down ? Do you have ____ problems ___?A.any,cutting it down B.any,to cut it downC.some,cutting it down the article is toolong ,so you have to _____ it ______ to 1,000 words用cut up,cut down 的正确形式填空