1.They failed to add an APPENDIX to the book.Which of the following is the right plural form for the underlined word?

2.Find out the odd word among the following

3.Identify the odd word among the options

4.Fill in the blanks with the correct word from the options:
We will have to find...... sources of energy in the future.

5.Fill out the blank with the most appropriate option given below:
Alexander's hope......the whole of India was not materialised due to his ill health