列出小学到初中的所有语法!!如题!!答:2how often是对频率提问,如:never, sometimes, often, usually, always, once a week, twice a day, three times a year, every day等。 How often do you watch TV? -Every two days. / Twice a week. 【若只有次数,则用how many times 提问: How many times do you watch TV a week? -Twice....