–---I wonder . –--Zebras.
A. what do they call these animals
B. how they call these animals
C. what they call these animals
D. how do they call these animals
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A. what do they call these animals
B. how they call these animals
(答案→)C. what they call these animals
D. how do they call these animals
解析：C 考查宾语从句的语序。宾语从句用陈述句语序，即“主语+谓语+宾语”，排除A、D；“他们叫这些动物什么”，what做the animals的宾语补足语。故选C。