There are some public signs in the park.改为一般疑问句

There are some public signs in the park.改为一般疑问句
He usually takes a walk in the park after supper.改为一般疑问句
I play football with my feirnds last weeknd.改为一般疑问句
I was in Shanghai two years ago.对划线部分提问，划线部分是in Shanghai
Helen and her family picked a lot of oranges on the farm on the National Day hoilday.对划线部分提问，划线部分是picked a lot of oranges
It was the 16th of November yesterday.对划线部分提问，划线部分是the 16th of November yesterday.
Please show us your beauitful stamps同义句
Were there any flowers in your garden?改成否定回答