I wonder that how he learned it.这句话哪里错了?

来源：学生作业帮助网编辑：六六作业网时间：2024/12/23 03:24:43

Iwonderthathowhelearnedit.这句话哪里错了?Iwonderthathowhelearnedit.这句话哪里错了?Iwonderthathowhelearnedit.这句话哪里错

I wonder that how he learned it.这句话哪里错了?
I wonder that how he learned it.这句话哪里错了?

I wonder that how he learned it.这句话哪里错了?
显然不该用that 一读就知道去掉that