Choose the correct answer. There is only one correct answer for each question.

1. 

   1.   ?    Rectangle
   2.   ?    Square
   3.   ?    Circle

2. 

   1.   ?    Square
   2.   ?    Rectangle
   3.   ?    Circle

3. 

   1.   ?    Circle
   2.   ?    Square
   3.   ?    Rectangle