Exercise 322. Ask questions as in the model to make sure that you've heard the person right.

MODEL: I heard him sing English songs. What songs did you hear him sing?

1. We noticed the old woman enter the house through the back door.2. They heard somebody moving behind them.3. I heard him telling jokes. 4.She saw the secretary looking through some documents.5. I saw them walk along the road. 6.I noticed him give her a hard look.7. We didn't hear her say this because she spoke in a low voice. 8.Suddenly they heard the front door open.​