1. The number of ways to divide a square into four congruent shapes by drawing two straight lines is ( ).
(A) 1
(B) 2
(C) More than 2 but finite
(D) Infinite
1. (D).

Draw any two perpendicular lines through the center of a square, which can divide the square into four figures. Each of these can be obtained by rotating the adjacent one by $90^{\circ}$, thus they are congruent. However, there are infinitely many ways to draw two perpendicular lines through a point.