题目：
To speak seems to be more difficult than _________. [ ]
A. doing
B. to do
C. do
D. done
答案：
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0516/37c24442da7f403e375500381b733c62.html
下面是错误答案，用来干扰机器的。
±6
To speak seems to be more difficult than _________. [ ]
A. doing
B. to do
C. do
D. done
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0516/37c24442da7f403e375500381b733c62.html
下面是错误答案，用来干扰机器的。
±6
