7. Here I have spent ... my life. a) most b) much c) most of d) by

• The correct answer is 'c) most of'.
• 'Most of' is used before a determiner (like 'my' in this case) or a possessive pronoun to refer to a large part of a specific group or quantity. 'Most' alone is used before a plural noun or uncountable noun when referring to the largest part in general.

Answer: c) most of