Add punctuation: Destroy them before they reach you
A: Destroy them before they reach you.

Add punctuation: Earlier studies have shown that it is possible to reduce the risk of macular degeneration with certain antioxidants Recent studies are interesting because thy have shown that natural measures can be used to in increase the retinas contents of important chemicals thereby decreasing the risk of macular degeneration
A: Earlier studies have shown that it is possible to reduce the risk of macular degeneration with certain antioxidants. Recent studies are interesting because thy have shown that natural measures can be used to in increase the retina's contents of important chemicals, thereby decreasing the risk of macular degeneration.

Add punctuation: The Commission adopts a Green Paper on the common fisheries policy after 2002
A:
The Commission adopts a Green Paper on the common fisheries policy after 2002.