I have two dogs. black one is 2 years old and yellow one is 3 years old.A. The; theB. The

I have two dogs. black one is 2 years old and yellow one is 3 years old.
A. The; the
B. The; a
C. A; a
D. A; the

(答案→)A. The; theB. The; aC. A; a D. A; the解析：句意:我有两条狗.这条黑色的两岁,这条黄色的三岁.结合语境可知本题中都是特指某种颜色的狗,故都用定冠词the,选A.

谢谢了