题目内容：

英语根据划线部分提问
原句：They have never got a TV set before（never划线）
改：—? —? have they got a set before?

优质解答

对 never 的划线提问是 How often...never是频率副词,此外还有always,usually,seldom,often 等,划线提问都用 How often...