Question: Instead you should look for items that are carefully made from strong materials
Please fix the punctuation.
Fixed: [Instead, you should look for items that are carefully made from strong materials.]

Question: Everything is connected and such then some DM categories selected from the food sponsors we get this year
Please fix the punctuation.
Fixed: [Everything is connected and such. then some DM categories selected from the food sponsors we get this year.]

Question: In the following weeks while a solution was sought at various conferences in London and Washington the press informed the masses that the Egyptians would not be able to run the canal where traffic would soon break down
Please fix the punctuation.
Fixed: [In the following weeks, while "a solution" was sought at various conferences in London and Washington, the press informed the masses that "the Egyptians" would not be able to run the canal, where traffic would soon break down.]

Question: If your dog is suffering from ventricular preexcitation but does not have tachycardia no treatment is needed However those with WPW syndrome will require conversion by dirrect shock the most effective treatment or by ocular or carotid sinus pressure or medicines
Please fix the punctuation.
Fixed:
[If your dog is suffering from ventricular pre-excitation but does not have tachycardia, no treatment is needed. However, those with WPW syndrome will require conversion by dirrect shock (the most effective treatment) or by ocular or carotid sinus pressure, or medicines.]