1. We___in the library when the bell rang.
a.Was researching
b.were researching
c.is researching
d.are researching
2. The nuns ____ the rosary now.
a.Is praying
b.was praying
c.are praying
d.were praying
3.She___the modules when her father arrives.
a.is answering
b.are answering
c.was answering
d.were answering
4. Jose___the flute when the visitors came.
a.was playing
b.is playing
c.were playing
d. are playing
5.Ana____the internet at this time
a.was surfing
b.is surfing
c.were surfing
d.are surfing​