I was studying for the test when the rainstorm came.(对划线部分提问)
____ were you____ when the rainstorm came?
甲:文明礼貌好,交往离不了。
乙:文明礼貌,个人爱好。
如图,四边形ABCD是正方形,BE⊥BF,BE=BF,EF与BC交于点G.
(1)求证:AE=CF;
(2)若∠ABE=55°,求∠EGC的大小.