A number of mothers with young children are stopped from undertaking paid work because they lack access to childcare.
A. considerate
B. critical
C. fundamental
D. substantial
网友回答
A. considerate
B. critical
C. fundamental
(答案→)D. substantial
解析：考察形容词辨析。Considerate 考虑周到的,体贴的 critical 批评的 fundamental 基本的，substantial实在的，本质的，重要的
a substantial number of意为很多人