跪求法律达人回答关于business law essay 的问题

chqcm1988

一不小心修了门不知道是什么的课···business law
里面有篇论文题目是这样的···
On 1st January 2011 Adam and Belinda entered into a contract whereby Adam agreed to build an extension to Belinda's house. The completion date for the building works was 31st July 2011, and this timing is stated as being of the essence because Belinda has a wedding there the next day (1st August 2011).
Advise Adam and Belinda in the following separate situations:
a) Adam scheduled the commencement of the works for 1st March 2011, but during February he realized that, in the light of labour shortages and increases in the prices of raw materials, he had grossly underestimated the cost of the building work. He has now been approached by Jack who would be willing to enter a much more valuable contract with Adam, but performance would be required immediately, meaning of course he could not then do the work for Belinda;
b) Adam informs Belinda that he cannot perform the contract because he only has two earth moving machines and one of those machines has been destroyed by fire at his yard. The cause of the fire has not yet been established. The other machine will not be available because it has been allocated to performance of other contracts.


这样的论文该如何写啊····我都快想死了~~~
坐等大虾来回答···