IN: Choose the desired files from the list, which you need to recover and then click "Next"
**
OUT: choose the desired files from the list, which you need to recover and then click "next"

IN: Are the printed books reliable witnesses?
**
OUT: are the printed books reliable witnesses?

IN: We should mention briefly other fields in which al-Tusi contributed.
**
OUT: we should mention briefly other fields in which al-tusi contributed.

IN: These premium APIs will serve as a bridge between Twitter's free APIs and enterprise versions.
**
OUT:
these premium apis will serve as a bridge between twitter's free apis and enterprise versions.