Jim _________ chores at home every day.
A:does
B:is doing
C:did
如图,在菱形ABCD中,过点B作BE⊥AD,BF⊥CD,垂足分别为点E,F,延长BD至G,使得DG=BD,连结EG,FG,若AE=DE,则 EGAB =____.