A young man hurried into his town library. He went up to one of the old librarians and sai

d to her eagerly ,"Do you remember that you persuaded me to borrow a book about Greek history a week【21】？"

"Yes, that' s【22】. "answered the librarian.

"Do you remember the name of the【23】. me young man asked. The librarian【24】very proud, because she was always【25】to get young people to take out books about Greek history, and she【26】found one who was willing to accept her suggestions.

"Yes, "she answered. "Do you want to take it【27】again？ Did you think that it was so interesting？"

"No, of course not." Said the young man, "but when I was taking it【28】. I met a girl on the bus. and I【29】her telephone number in the book. I want to【30】her, so may I look at the book again？"

(56)

A．ago

B．before

C．later

D．yesterday