Tom was drawing a picture ____ Sam ____a model. Grandpa was reading a book ____ grandma ____ a glass. Mom ____the bathroom while Tom and Sam ____ with their toys. Kelly ____ in the park ____ her phone ____. I ____ my little sister when a ball ____on my head. The police ____ after the robbers ____ a robber ____his gun. Sally ____ mobile phone ____ her father ____. The big cats ____ the mice ____ the children ____ under the table. The dog ____ its food ____ I ____ TV. What ____ you ____ at 7:00 pm yesterday?

Ch.6 when / while

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