2.A
3.B
4.( 1) (Yan Zhitui) was addicted to alcohol, too willful and indulgent, and slovenly, so public opinion at that time despised him.
(2) At the end of the Natural Forest Protection, (Yan Zhitui) followed him to Tianchi, and (Xianzu) was going to appoint (Yan Zhitui) as the official of Chinese calligraphy, and sent the official of Chinese calligraphy to Yan Zhitui to read a letter.