As as the sky is your mind. As deep as the sea is your kindness.
A. broad
B. aboard
C. abroad
D. board
网友回答
(答案→)A. broad
B. aboard
C. abroad
D. board
解析：考查词义辨析。A宽阔（形容词）；B在船上，在飞机上，在车上（副词）；C在国外（副词）；D板（名词）；句意：心就像太空一样宽阔，善良就像海洋一样深厚。本句中要使用形容词broad与后面的deep形成呼应。故A正确。