jump?to the ground 中间填什么?

jump?to the ground 中间填什么? jump on the ground. 请问：Jump and press to pound the ground. Jump up the填什么 jump( )the air 括号填什么? There is a book____on the ground.横线填什么 to the Ground 歌词 Parks are to the city_____lungs are to the body中间填什么 It什么easy to run and jump in the sand digging up the ground to plant vegetables什么意思 The children go to school _______ the age of six.（中间的介词填什么?） It took me the [w ] day to finish the homework.[w ]中间这个词填什么