他从2005年起就开始学习中文了.he has started to learn Chinese since 2005.

他从2005年起就开始学习中文了.he has started to learn Chinese since 2005. 他七岁开始学英语 he started to learn english at seven. he started to learn English 他在去北京之前已经学过中文怎么写?He has learnd chinese before he came to bei Six years has passed since he began to learn English.为什么Six 必须用现在完成时造句从他是一个小孩开始,他就是一个基督徒.Since he was a child,he has bee he started to learn the piano when he was 因为他想学中文,Because he wants learn/learns Chinese. The twin sister______(learn)Chinese since they came to China he also -----like to learn chinese He started to learn English in 1999.改为同义句 I started to learn English since two years ago.问问大家这句话有语法错误吗