The cousins are alike in age but they are as different as day and night.A. besidesB. any

问题补充：

The cousins are alike in age，but they are as different as day and night.

A. besides

B. anyhow

C. otherwise

D. moreover

答案：

A. besides

(答案→)B. anyhow

C. otherwise

D. moreover

解析：副词辨析。A而且；B无论如何；C否则，要不然；D更加；结合句意可知B正确。句意：那对堂兄弟在年龄上很相似，但是无论如何他们还是有很大的不同的。