Usually, in a conclusion, you wrap up what you have been writing about the whole time. So, a conclusion is basically a summary of the whole text. You can introduce new ideas for the reader, but it is usually inadvisable. In a couple of sentences, you should finish your text, referring to the previous paragraphs and just wrap it all up nicely.
Answer:
the engine of the car have to be repaired by them
Its a metaphor :) the kids room is being compared to the disaster area to make the point that it is messy
Answer 1.
a. Eggs
b. Ladies
c. Women
d. Deer
e. Calves
Answer 2.
a. Ravi's sister is very pretty.
b. These students' books are on the table.
I think it is the first one
