【题目】________by many wellknown experts and film stars，the product was very popular at one time.
A. To advocate B. Having advocated
C. Advocating D. Advocated
在线课程【答案】D
【解析】考查非谓语动词的用法。该题句意为“被很多知名专家和电影明星推崇，这个产品一度非常流行”。A项动词不定式常表目的，并且是主动形式，故排除；B、C两项均为现在分词表主动，故排除。故答案为D。