Comments and Track Changes Support

I am new to Pages and purchased it on my iPad thinking it would be great to view work documents. The majority of documents I receive are in MS Word .doc or .docx file format. The documents often contain track changes and comments. After reading the Pages description before purchasing it, the description led me to believe that Pages supports .doc and .docx files. To my dismay when I opened my first .doc document in Pages, Pages stripped out comments and does not support track changes, essentially rendering my document useless to view in Pages. My understanding from users of Pages on the Mac OS is that this does not happen.

Is my experience user error and if so, are there settings I need to change? Or is this an oversight on Apple's part and Pages for the enterprise user of the iPad is more of a shredder than useful word processor.

Thanks.
Kind regards.