[He has estimated that the problem would lead to a loss of $10,000 and would require time to resolve.]
This should be the right answer hope it helps!!
I believe it is the work we enjoy is not really work
Modern monsters can hide within normal society; historical monsters lived outside of society.
The correct answer should be Paragraphs in an essay should all be organized the same way.
If they are all different it might confuse the reader and dissuade him from continuing with reading.