1. He stepped into the office, _____down and began to fill in the forms.
A.sitting B.to sit C.sat D.having it
2. She said she would telephone but we _____from her so far.
A.haven’t heard B.didn’t hear C.hadn’t heard D.won’t hear
3. When I got to the cinema, the film____for ten minutes.
A.has begun B.had begun C.had been on D.was