rpsh if the phrase "a mere" is a parenthesis or the word "mere" is a parenthesis. What in the world do you mean by that? rpsh Is the usage that "a" collocate with a plural word "years" right?
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rpsh if the phrase "a mere" is a parenthesis or the word "mere" is a parenthesis.What in the world do you mean by that?
rpshIs the usage that "a" collocate with a plural word "years" right?'a' refers to the noun phrase 'mere 30,000 years'.