请帮忙翻译一下下面这个句子This material provides a wide-range of grammmar practice exercises and offers a complete approach which can help you improve your communication skills when we socialize with different kinds of people.

问题描述:

请帮忙翻译一下下面这个句子
This material provides a wide-range of grammmar practice exercises and offers a complete approach which can help you improve your communication skills when we socialize with different kinds of people.