问题补充：
I can’t spell their names, could you please ?
A. write it down
B. write down it
C. write them down
D. write down them
答案：
A. write it down
B. write down it
(答案→)C. write them down
D. write down them
解析：根据前文的内容I can’t spell their names，可知答案为them，write ···down，后接人称代词，them，故选C
