林涛四岁时就会弹钢琴了.Lin Tao ____ _____ _____ play the piano when he

林涛四岁时就会弹钢琴了.
lin tao ____ _____ _____ play the piano when he was four years old.
没有人知道将来会发生什么事.
no one knows what will happen ____ ____ ____.
树上有好几百只鸟.
there are ____ ____ birds in the tree.
下班后咱们去溜冰吧.let's ____ ____ after work.
我相信你会爱上***.
ibelieve you will ____ ____ ____ ____china.