对括号内内容提问They have been here since （this morning）They have been there （for three hours）He went （to the cinema） last weekJohn’s birthday party lasted （about three hours）
网友回答
WhenHow long
Where How long
======以下答案可供参考======
供参考答案1:
When How long
Where How long
掌握短暂的时间提问用When ,长时间持续的用How long 提问,地点提问用Where