Anonymous 'has been' sounds more appropriate it is the right answer, but why is 'is' grammatically incorrect? Because of 'since last September', which indicates a span of time between the past and now. Since last September , Patricia has been working at the convenience store down the road.
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.
Anonymous'has been' sounds more appropriate it is the right answer, but why is 'is' grammatically incorrect?Because of 'since last September', which indicates a span of time between the past and now.