如图，已知AB∥CD，EF⊥CD于点F，若∠B = 35^{\circ}，则∠BEF = （$\qquad$） 。---**Diagram Description:** * **Type:** Geometric figure. * **Main Elements:** * Two horizontal lines labeled AB and CD. * Points A and B on the upper line (AB). * Points C and D on the lower line (CD). * A point E located between the two lines. * A point F on the lower line (CD). * A line segment connecting B and E. * A line segment connecting E and F. * An angle at point B, between line AB and line segment BE, is labeled as 35°. * A right angle symbol is shown at point F, indicating that line segment EF is perpendicular to line CD. Point F is on line CD, and EF extends upwards from F to E. **Note:** The image contains only the diagram and no explicit question stem, options, or other accompanying text.