(a) To complete the figure, we need to join the squares exactly the same way as the shape is in on the other side of the line of symmetry. Hence, the completed figure is shown as follows:

(b) To complete the figure, we need to join the squares exactly the same way as the shape is in on the other side of the line of symmetry. Hence, the completed figure is shown as follows:

(c) To complete the figure, we need to join the squares exactly the same way as the shape is in on the other side of the line of symmetry. Hence, the completed figure is shown as follows:

(d) To complete the figure, we need to join the dots exactly the same way as the shape is in on the other side of the line of symmetry. Hence, the completed figure is shown as follows: