帮我看下这几句英文写得对不对

问题描述:

帮我看下这几句英文写得对不对
we realize that MSN is the most important tool of Macao teenagers,and they use it almost everyday

不是很对tool是让macao teenagers使用的 后面的and有点多余,我觉得应该改成:
we realize that MSN is the most important tool that Macao teenagers use,they use it almost everyday