Complete the following sentences, using the Past Perfect Tense (see the chart above).
(C) 1. I knew her immediately because my brother (describe her to me very well). 2. The militiaman stopped her because she (cross the street in the wrong place). 3. I was not hungry because I (have lunch just an hour before). 4. Nobody knew when he came in because he (enter the house through the back door). 5. I thought he knew English well because he (live in England for some years). 6. It happened to him because he (always be too sure of himself).