a) The majority of products sold online are delivered in brown cardboard boxes.
b) Many Prime members end their membership within a year.
c) In the future Amazon will reduce shipping time to less than a day.
d) Because of the carbon footprint of their companies, FedEx, UPS and DHL now use alternative fuel.
e) Finding customers' homes in rural areas is sometimes difficult for delivery drivers.
f) Online sellers are discussing using only drones to deliver their products.
