Question: He didn't work free, known as pro bono, but charged one-third the going rate and took a client's ability to pay into account when making up the bill.
He constantly worked for free or for pro bono because it was the more profitable thing to do.

Answer: no

Question: The trade blockade was to last eight years, and ended in a seven-month siege.
The siege eventually succeeded.

Answer: it is not possible to tell

Question: Figure 5 shows the basic curves for a situation where both no-shift elasticities are the same at -0.
Figure 5 does not exist, look for figure 4 to find information on the basic curves.

Answer:
no