Did the boy wait for his friend very long?
Did car stop near our house?
Did mother wash and dress the baby?
Did we walk in the wood all day?
Did the weather change very often?
Did the teacher ask us many questions?
Did our lessons finish at twelve o'clock?
Did I look at the blackboard?
Did the door open suddenly?
Did Jack close the window quickly?
Did a havy rain start suddenly?
Did she close the window at once?