___his homework, he was thinking hard. 

 ___fruit, he looked back from time to time, hoping to see his friends. 

___some juice and cakes, we went home. 

___all the potatoes, she drank a cup of tea.

___through some magazines, I came across an interesting article. 

___the mountain they heard a man calling for help.

___the story, she closed the book and put it on the shelf.

While ___the street one should first look to the left and then to the right. 

___the medicine, the doctor went away. 

People ___a performance are called an audience.