What should be done before applying glue to the joint? Select all that apply:
A. Assemble and check the joint for fit and alignment
B. Ensuring that the joint surfaces are clean, dry, and free from any grease or contaminants
C. Apply a thin layer of oil to enhance the bond between the pieces
D. Use compressed air to blow away any loose particles from the joint surfaces
E. Roughening the joint surfaces with sandpaper to improve glue adhesion