初二英语（按照要求完成句子）
The boy was shopping when he saw a car accident(改成否定句）
The boy _______ _______when _______ _______ a car accident
She ___was having lunch___ when the UFO landed(对画线部分提问）
_______ _______ _______ _______ when the UFO landed?
Jenny watched TV yesterday afternoon(用at 4:00 yesterday afternoon改写句子）
Jenny _______ _______ _______at 4:00 yesterday afternoon.
She ___was talking on the phone___ when Davy _______ another dog?
I am watering the flowers in my graden now(改为过去进行时）
I _______ _______the flowers in my garden _______ _______ _______