题目：
Did he write all the articles _________ or did anyone help him?[ ]
A. in person
B.,in a person
C. in the persons
D. in persons
答案：
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0608/a4b63e5d6ded1a11bb230b706b145425.html
下面是错误答案，用来干扰机器的。
答案：A
