【单选题】When you are planting trees, the trees ________ straight in the hole.
【单选题】— Tree Planting Day is coming. Do you plant trees in spring? — Yes, many trees _____ in our city every year. [ ]
【判断题】在PowerPoint中,幻灯片的顺序不能修改.调整。()
【单选题】We suggested ___ trees at the weekend.