1.He's looking (up) at sth.
2.What are they doing?They're looking.
3.What's he doing?He's running away.
4.What's he doing?He's running back with a bag.
5.What's he doing?He's opening the bag.
6.What's he doing?He's taking a photos with the camera.
7.What are they doing?They're looking at the birds in the tree.
（我们老师说的）