American teenagers often use computers.(对划线部分提问often)( )( )( ) America teenagers use computers?

American teenagers often use computers.(对划线部分提问often)
( )( )( ) America teenagers use computers?

很高兴能够在这里回答你的问题,
(How often do) America teenaagers use computers?
对频率进行提问,用how often

How often do