You are downloading the TOEFL Grammar XAP file v126.96.36.199 for Windows Phone. TOEFL Grammar is a free Education App: TOEFL Grammar Test is an application designed to help you improve your ability to do the TOEFL Grammar Test. The application has 150 grammar tests. ... You can now download the offline XAP package file to install & try it.
Download Locations for TOEFL Grammar 188.8.131.52 XAP file
To try to install it manually from an SD card, you should choose one of the server location above to get the offline TOEFL Grammar XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.