Do you live here or ________ you visiting? ( )
A:do
B:is
C:are
① ____ A. February B. January C. birthday
② ____ A. make B. noodle C. come
③ ____ A. party B. when C. what
④ ____ A. second B. first C. March
①收益性 ②风险性 ③偿还性 ④固定性