Choose the correct word. Read the article More Dubious agreement to help you out.

1. I am certain that every one of the decadent treats at Deena’s Dessert Emporium (contains/contain) at least 500 calories.a) containsb) contain
2. My friend Julia is one of those people who always (listens/listen) attentively and sympathetically to others.a) listensb) listen
3. The city councillor has stated publicly that there (is/are) a number of feasible ways to integrate bicycle lanes into the downtown core.a) isb) are
4. (Is/Are) either of the twins free on Saturday afternoon to come over and paint our pergola?a) Isb) Are
5. None of the health and safety inspectors, with all their know-how and detection gadgets, (has/have) been able to determine what is causing the dreadful smell in our cubicles.a) hasb) have
6. Amir is one of those athletes who (excels/excel) at many sports thanks to a rare combination of muscularity, speed and agility.a) excelsb) excel
7. Halifax is one of the few cities that (offers/offer) Scott, a master boat builder, a choice of jobs in his field.a) offersb) offer