—Are you a volunteer now?
—No, but I _____. I worked for the City Sports Meeting last year.
A.used to | B.used to be | C.used to do | D.was used to |
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—Are you a volunteer now?
—No, but I _____. I worked for the City Sports Meeting last year.
A.used to | B.used to be | C.used to do | D.was used to |