What are the trees used___?They can be used ___ make paper and pencils.A for,to B to,as C on ,to

What are the benefits of forest trees? What are the benefits of forest trees?什么意思 The trees are growing What are those?____are___apple_ trees what on the trees?There are many apples.空白处填is 还是are?what____on the trees? the students are planting trees over there.whatthe students are planting trees over there.what the students over there? ________are the trees?They are green.A What B What colour C What's 组成合理句子：1:trees,the,climbing,pandas,are.2：are doing,mokeys,the,what. What are u doing? What are the U.S.'s impacts on globalization what good are trees?没人知道? What good are trees?完成对话 what are___over there?they are trees. what ____(happen) to the forest if too many trees are still being cut down? the trees and flowers are --- the hill . The children are water the trees. The children are water the trees对吗? the trees are near the river提问