Self—service libraries（自助图书馆） are becoming more and more popular in BeiJing.A self—service library is about the size of three cars.It usually has more than 400 books.And it is        __________all day.It allows (允许)users to borrow and        books 24 hours a day.Users can keep five books for up to four weeks a time .

  There have already been 50 libraries like this across BeiJing.100 more are expected to open in the coming months.

Many users said the Self—service libraries were very convenient(方便的) and easy to use.”I can return or borrow a book at any time of a day,even early in the morning before I go for a walk in the garden,”said an old man.

1.在空格处填上适当的词使上下文通顺。                                  

2.将划线句子翻译成中文                                                    

3.回答问题  How many libraries like this are there across BeiJing now?                     

4.写出同义句 People hope that 100 more libraries like this will be opened in the future.

5.写出本文的中心句                                                                                          

It has ________ service．

1. A.
   the most friend
2. B.
   the most friendly
3. C.
   the friendliest
4. D.
   the friendest