In Exercises 56-63, complete the statement with always, sometimes or never. Explain your reasoning. 56. A line has endpoints.
57. A line and a point intersect.
58. A plane and a point intersect.
59. Two planes intersect in a line.
60. Two points determine a line.
61. Any three points determine a plane.
62. Any three points not on the same line determine a plane.
63. Two lines that are not parallel intersect.