1. They had been preparing for their wedding for three months. - What had they been preparing for?
2. Helen had been painting the floor in the kitchen for two hours yesterday. - What had Helen been doing for two hours yesterday?
3. You had been playing computer games for three hours yesterday. - What had you been doing for three hours yesterday?
4. Mark had been fixing his bike for two hours yesterday. - Who had been fixing his bike for two hours yesterday? What had Mark been fixing for two hours yesterday. How much time had Mark been fixing his bike yesterday.
5. We had been gathering the apples in the garden all day. - Had we been gathering the apples in the garden all day? Who had been gathering the apples in the garden all day? What had we been gathering in the garden all day? Where had we been gathering the apples all day?