Helen_______(plant) trees on Monday

Helen_______(plant) trees on Monday 语法练习：Every spring we plant trees on the hill. Look at the children.They_____(plant) trees on the hills They___(plant) trees on the hill.do you see? When__Helen__(plant)trees on the farm?Last wekk They spend the whole day____(plant) trees on the hill the farmers plant trees on the farn every year We always _____(plant) many trees on Tree Planting Day. 16.More and more trees ( plant) on the mountains soon. They are going to____(plant) trees on the mountain tomorrow. We (watered trees) on Monday.否定句、一般疑问句、提问 they are going to plant trees on 2 years,中的plant 还有为什么等于grow