—What do you call these animals?—We call them kangaroos. The structure of sentence is .A.

问题补充：

—What do you call these animals?—We call them kangaroos.

The structure of sentence is .

A. S + V

B. S + V + DO

C. S + V + IO + DO

D. S + V + DO + OC

答案：

A. S + V

B. S + V + DO

C. S + V + IO + DO

(答案→)D. S + V + DO + OC

解析：句意:--你怎么称呼这些动物？我们称它是袋鼠。这里we是主语；call是谓语动词；them是宾语，kangaroos是宾补。故选D。