英语句子,帮忙看看有没有语法错误.1.Only he who has enough knowledge can helps others with facility which also can make the expert more professional.2.Only if he has enough knowledge can he help others with facility which can also make the expert more professional3.his zeal can help him to get along well with everybody he met no matter bad-tempered they are.4.politeness is essential to expert.

英语句子,帮忙看看有没有语法错误.
1.Only he who has enough knowledge can helps others with facility which also can make the expert more professional.
2.Only if he has enough knowledge can he help others with facility which can also make the expert more professional
3.his zeal can help him to get along well with everybody he met no matter bad-tempered they are.
4.politeness is essential to expert.