Task 4 Directions: The following is a list of terms. After reading it, you are required to find the items equivalent to those given in Chinese in the table below. Than you should put the corresponding letters in the brackets of question NO. 51-55. A—action advertising B—airport advertising C—billboard advertising D—business advertising E—direct mail advertising F—gift advertising G—lamp post advertising H—light box advertising I—local advertising J—magazine advertising K—neon light advertising L—newspaper advertising M—online advertising N—outdoor advertising O—platform. side advertising P—public service advertising Q—sales promotion advertising Examples：(P)广告 (K)霓虹灯广告 51．( )机场广告 ( )户外广告 52．( )灯箱广告 ( )杂志广告 53．( )地方性广告 ( )路灯柱广告 54．( )赠品广告 ( )直接邮递广告 55．( )行为广告 ( )报纸广告 【51】