The guide（ will help） you when it（ is） necessary.请问这个写的对吗(⊙_

The guide（ will help） you when it（ is） necessary.请问这个写的对吗(⊙_ She will help you when it necessary怎样改 It is necessary for you to help each other. Can you help me _ when they will arrive at the station? 英语翻译When it is necessary to communicate with the specificati You can ask ____（任何人）in this team for help when necessary The police will help you when n_____. 请问这个选什么?It is necessary that the problem____in some way or o when it is necessary 为什么可以变为when necessary? It is necessary for us to help each other(同义）  &nb It's not necessary to help him.He is old enough to(）himself. it have been necessary 和 it is necessary 的区别?请问下句中it had bee