13．16．Where did the story happen？
A．In New York．
B．In London．
C．In Moscow．
17．The library turned into a home for略people for several days．
A.25
B.250
C.2，500
18．The people in the story略．
A．were all the workers in the library
B．were all the people near the library
C．donated lots of books to the library
19．Why did the people move into the library？
A．Because they wanted to save money．
B．Because they needed places to live in．
C．Because they didn't want to lose the library．
20．What can we know from the passage？
A．The library was kept open at last．
B．The library was burned down．
C．The city saved a lot of money．
