Fill in the Blanks (Reading & Writing) (Core)

The city's bike-share program has added dozens of new docking stations this spring. Members —unlockreleaseopenfree a bike by tapping their card at any station and return it to another when done. The first thirty minutes are free, after which a small charge —appliescountsaddsruns for each additional half hour. To encourage safe riding, the city offers free helmets while —suppliesstocksamountsnumbers last at select locations. Riders are reminded to —lockfastensecurefix the bike securely in the dock, since a loose return still counts as an active trip.