Ⅰ、1-5：D C B A G
Ⅱ、6-10：C A A C A
11-15：B B A B C
Ⅲ、16-20：D A B B C
Ⅳ、21、There are five people in the photo
22、She is eighty years old
23、He is a teacher
24、hospital
25、He is next to the writer's nother