It even leaves the wise scientists in wonder they should call the newly-born creature, which looks half-human and half-animal.
A. what
B. how
C. why
D. that
网友回答
(答案→)A. what
B. how
C. why
D. that
解析：考查名词性从句。wonder在此是名词，后跟同位语从句，对其进行补充说明；call sb sth叫/称呼......为......，即call后跟双宾语，同位语从句缺少宾语，用what充当，B、C作状语，that在名词性从句中无意义，故选A。