please come and join in us.这句话有什么语病?Please come and join in us.A B CA/B/C是哪一处错了?

问题描述:

please come and join in us.
这句话有什么语病?
Please come and join in us.
A B C
A/B/C是哪一处错了?

C
应该是Please come and join us

C
把in去掉