My family has two dogs. One is white, ________ is black.

A. other    B. another        C. the other      D. others

阅读下列短文，掌握其大意，然后从所给的四个选项中，选出最佳答案

　My cat's 　1　 is Lucy. She is a very pretty 　2 　. Her hair is black and yellow.

　She has four children. So I have five 　3 　. She is very happy with her young 　4 　.

　The four children are not all 　5 　Lucy very much. The biggest child is quite black. 　6 　is black with white feet and one white ear. Two children are like their mother 　7 　. My daughter says “Aren't they pretty? 　8 　I have the black and white one? Isn't he a tomcat (雄猫)?”

　I say “I don't know, but I know the yellow and black ones are females (雌性的).”“Are they ? How do you know?”“ 　9　 they are yellow and black. Tomcats never (从不) have that 　10 　. Listen and I'll tell you ...”