input: It must therefore be possible for us to imitate Christ that is to say to represent and communicate His desires and will while we are here on earth
fixed: It must therefore be possible for us to imitate Christ, that is to say, to represent and communicate His desires and will while we are here on earth.

input: If you want to know in advance what turns me off try my limits
fixed: If you want to know in advance what turns me off: try my limits

input: Did someone email you a AB8 file and youre not sure how to open it Maybe you have found a AB8 file on your computer and wondering what its for Windows might tell you that you cant open it or in the worst case you might encounter a AB8 file related error message
fixed: Did someone email you a AB8 file and you're not sure how to open it? Maybe you have found a AB8 file on your computer and wondering what it's for? Windows might tell you that you can't open it, or in the worst case, you might encounter a AB8 file related error message.

input: focused on lowfat since eating a lowfat diet can help you maintain a healthy weight
fixed:
...focused on low-fat, since eating a low-fat diet can help you maintain a healthy weight.