In question 4, the task is to draw lines through points C and D that are parallel to the line labeled "h."

To solve this:

1. First, locate points C and D on the grid.
2. Then, draw a straight line passing through C and D.
3. To make sure the new line is parallel to line "h", you should use a ruler or any straight edge aligned with the grid lines to ensure the new line maintains a consistent distance from line "h" and never intersects it.

Let me know if you'd like a more detailed step-by-step explanation or help with any other task!