In Hangzhou, borrowing books from the library is now as simple as shopping online: click, pay ____wait for delivery.

    The city's public library recently launched a program on WeChat,____popular Chinese messaging software, enabling its readers to check out books online and get them____(deliver) to their homes at low prices.

    To enjoy the “Hangzhou enjoyable reading” service, one first needs to follow the library's official WeChat account,____provides a list of books. After picking books, borrowers are required____(present) the information such as their library membership cards, cell phone numbers and so on. The selected items will be delivered by express within three days after payments. Each reader can borrow up to 5 books once and 20 books at most____total. The books can be borrowed for up to 40 days. Readers now can borrow the library's most popular books in this way. The online books will be renewed and enriched ____(gradual) according to readers' borrowing habits and____(prefer). At the end of December, the library's old and classic books____(put) online too, making the total number of books available and____(bring) borrowers a lot of convenience.