16. (2018临沂)These people dress themselves in bloody shark suits. They tell people ________ shark fins in order to protect sharks.
A. eat  B. to eat  C. not eat  D. not to eat
16. D【解析】考查动词不定式。句意：这些人穿着血腥的鲨鱼服。他们告诉人们为了保护鲨鱼不要吃鱼翅。tell sb. (not) to do sth.为固定搭配，意为“告诉某人(不要)做某事”。根据语境可知不要吃鱼翅。故选D。