Choose the sentence that shows the correct usage of commas. Because we had packed haphazardly we were unable to put all our supplies into the suitcases.

Because we had packed haphazardly, we were unable to put all our supplies into the suitcases.

Explanation:

That sentence is wrong. It is supposed to be like this "Because we had packed haphazardly, we were unable to put all our supplies into the suitcases."

Explanation:

But where are the other sentences?

recent news about two years ago indicates that a polish forestry student by chance unearthed at a depth of about 40cm (16 inches), during digging in a damp polish forest he found a 13-page manuscript into a thermos flask.

greek jew marcel nadjari was a aischwitz slave who witnessed how the nazi's built big death chambers and crematoriums and told how he was forced to escort fellow jews to the gas chambers. he accounts on this manuscript how the nazi's disguised this chambers to look like showers. also, he describes this place as a process of extermination from the chambers to the trains arriving to take the bodies.