1.Could you tell me how to plant a tree (改为同义句）Could you tell me_ _ _ _ _
2.Take the third turning on the left.（改为同义句）— — — — — turning.
3.The earth goes around the sun.Our science teacher told us.(合并为一句）Our science teacher told us that the earth _ _the sun.
4.I————————————(现在不方便见他）
5.He———————————（无话可说）on this question.