While he was in prison he had … time to read a lot of books.

Analyze the question The sentence is: "While he was in prison he had ......... time to read a lot of books." We need a word that correctly modifies the noun "time" and fits the meaning, since reading a lot of books requires plenty of time.

Explain the concept The key point is whether "time" is countable or uncountable.

• "Time" (in the sense of free time) is an uncountable noun here.
• "Few" is used only with plural countable nouns (few books, few students), so it cannot go with "time". "Little" would be the uncountable equivalent.
• "Most" needs "the" or "of the" to work here (e.g. "most of the time"), so "he had most time" is awkward and incorrect.
• "Real" means genuine, so "real time" refers to something else (like "real-time" data) and does not suggest having plenty of time.
• "Ample" means plentiful or more than enough. It fits uncountable nouns and matches the idea of reading many books.

Solution Test each option:

• A. "he had ample time to read a lot of books" is grammatical and logical.
• B. "he had real time" is not idiomatic and has no sense of quantity.
• C. "he had few time" is ungrammatical.
• D. "he had most time" is ungrammatical and incomplete.

Answer: A. ample

Tip: Look at the noun first. If it is uncountable (time, water, information, advice), eliminate "few" and "many". Also note that "ample" often pairs with time, opportunity, space, and evidence. For example: "ample time", "ample opportunity".