Question: In the same year he was awarded his certificate to enable him to teach in schools and on the strength of his prize winning essay he was awarded a doctorate
Please fix the punctuation.
Fixed: [In the same year he was awarded his certificate to enable him to teach in schools and, on the strength of his prize winning essay, he was awarded a doctorate.]

Question: This book provides a detailed description of the three ancient temples unearthed between 19541961 near Barbar on the northern part of Bahrain island in the Persian Gulf
Please fix the punctuation.
Fixed: [This book provides a detailed description of the three ancient temples unearthed between 1954-1961 near Barbar on the northern part of Bahrain island in the Persian Gulf.]

Question: The ads presented via this network are usually displayed on porn sites or they are employed to promote sites of this kind via other websites
Please fix the punctuation.
Fixed: [The ads presented via this network are usually displayed on porn sites, or they are employed to promote sites of this kind via other websites.]

Question: The software starts scanning your CF card and display all recovered files on the screen
Please fix the punctuation.
Fixed:
[The software starts scanning your CF card and display all recovered files on the screen.]