问题补充：
The word “ungelievable” based on Chinese, which has become a big hit online very quickly, a message that Chinese can also serve as an addition to English vocabulary.
A. delivers
B. simplifies
C. declares
D. clarifies
答案：
(答案→)A. delivers
B. simplifies
C. declares
D. clarifies
解析：A. Delivers传达，发表演讲， B. simplifies 简化，C. Declares宣布，D. Clarifies阐明，句意：“ungelievable”是以汉语为基础的，迅速在网上流行，传达了信息，汉语也可以加入到英语词汇。所以选A。
