根据n多题专家分析，试题“ Mr Smith has two______ , both of whom are teachers in a school.A．brothers-in-lawB．brother-in-lawsC．brothers-in-lawsD．brothers-in law…”主要考查了你对  【可数名词及其单复数】，【集合名词】，【名词】  等知识点的理解和应用能力。关于这些知识点的“档案”，你可以点击相应的链接进行查看和学习。

与“ Mr Smith has two______ , both of whom are teachers in a school.A．brothers-in-lawB．brother-in-lawsC．brothers-in-lawsD．brothers-in law”考查相似的试题有：