Choose the most suitable determiner for the given sentence. I do _____work at…

Answer: less.

Rule: Use "less" with uncountable nouns (amounts or degree). Use "fewer" with plural countable nouns.

• Why "less" is correct here: "Work" is an uncountable noun when it means amount of activity, so we use "less" (not "fewer").

• Correct sentence: I do less work at weekends than I used to.

• Contrast example (countable vs uncountable): Incorrect: "We’ve got less pizzas than we need." Correct: "We’ve got fewer pizzas than we need."

• Note on other determiners: "A few", "few", and "fewer" are used with countable nouns (for example, "a few books", "fewer errors").