Could you tell me please if the words just/single in "in just a single year" are unnecessary?
"One young woman, Rachel, 19, recently came to the firm after running up debts of £30,000 in just a single year."
According to the keys in my textbook, there are unnecessary words in the said sentence: just or single, so it has to be "in just a year" or "in a single year". Turns out, the whole task was based on this article https://www.theguardian.com/uk/2001/feb/25/shopping.paulharris
. The authors of my textbook deliberately injected some unnecessary words in the article, like:
"1: Company officials put ON a lot of the blame for the rise squarely at the door of the internet, [...]"
And the task was to find those unnecessary words: "line 1: on", etc. Yet, for some reason, they deemed the original phrase "in just a single year" (it was like that in the said article) incorrect. I don't understand it; it sounds like an emphasis for me. Also, it looks like the phrase "in just a single" year/day/minute/step/etc is all over the internet (including numerous books).