Why didn't you __our trip to Zhou Zhuang?A.join B.join to C.join in D.go on 感激不尽

Why didn't you __our trip to Zhou Zhuang?A.join B.join to C.join in D.go on 感激不尽

join in
join 参加了某一种团体
take part in 参加某一种活动
attend 出席
而"join in"是"参加"的意思,常用于:join sb in +活动名称
如：join us in the games