Yes, Bus 39 has a stop nearby.
To pay for a ticket on the green line, you have to buy it at a machine, or tap your CharlieCard that you can buy at some convenience stores!
How to pay for the ticket, cause I don't see any place on the train to pay
You can take the T to Prudential stop and walk from there to Traders joes. It is hardly a 5 minutes walk from there.
It is accessible by bus as well as the Green line. Just need to walk over to Boylston Street. It is across from the Hynes Convention Center.
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