Small as it is the ant is as much a creature asall other animals on the earth.A. areB. isC

问题补充：

Small as it is，the ant is as much a creature asall other animals on the earth.

A. are

B. is

C. have

D. do

答案：

(答案→)A. are

B. is

C. have

D. do

解析：本题主要考查对句子结构的辨析。根据句子的意义可知，第二个as引导一个定语从句修饰先词a creature；根据句子结构，先行词在从句中作表语，从句的谓语动词的形由后面的主语all other animals决定。