While you were in London that year,the London Bridge______.

A.was being repaired　　　　                          B.had been repaired

C.would be repaired　　　　                           D.was repaired

While you were in London that year,the London Bridge______

1. A.
   was being repaired　　　　
2. B.
   had been repaired
3. C.
   would be repaired　　　　
4. D.
   was repaired