问题补充：
All the Harry Potter books by Joanne Rowling, a poor single mother in Edinburgh, all over the world.
A. lives; are well sold
B. lives; sell good
C. living; sell well
D. living; are well sold
答案：
A. lives; are well sold
B. lives; sell good
(答案→)C. living; sell well
D. living; are well sold
解析：C 考察动词时态。第一空用现在分词做后置定语修饰Joanne Rowling的同位语a poor single mother,第二空动词sell与副词well连用表示主语books的特点，故用其主动语态表示被动含义。
