they are brothers they look like each other.A. Because B. Though C. When D. So

问题补充：

they are brothers, they look like each other.

A. Because

B. Though

C. When

D. So

答案：

(答案→)A. Because

B. Though

C. When

D. So

解析：A. Because 因为 B. Though 尽管 C. When当…时候 D. So所以；句意：因为他们是兄弟，所以他们两个看起来很像。故选A