The twins are talking about the book Who Moved My Cheese.It's fun to ________
问题描述：
The twins are talking about the book Who Moved My Cheese.It's fun to ________
A.join b.join in C.take part in
请问这个选择哪个呢?为什么呢?我选择的是B.
答
还原 ：join the twins 加入他们的讨论,及物动词,后面无需加介词
所以选A