His father was in poor health and had to give up _____.[ ]

A. smoke

B. to smoke

C. to smoking

D. smoking

说唱音乐形式在唐代以完全确立。当时民间流传的说唱音乐称为“（）”，它以讲说故事为主，中间夹用歌唱。又佛教为了宣传教义，从南北朝以来就开始把经文和叙事歌曲相结合，逐渐发展成为一种被成为“变文”的说唱形式。