Most student surf the Internet two or three times a week.对划线部分提问划线部分：two or three times
问题描述：
Most student surf the Internet two or three times a week.对划线部分提问
划线部分：two or three times
答
Most student surf the Internet two or three times a week.对划线部分提问
How often do most students sruf the Internet a week?
对频率提问用how often,隔多久做某事
答
How often do most student surf the Internet?
希望我的回答能帮助到你O(∩_∩)O哈！有不懂的继续问我噢~
答
How many times do most students surf the Internet a week?
或：How many times a week do most students surf the Internet?
我本来是一楼,但是二三楼答案有误,怕误导楼主.
如果是对two or three times a week一起提问,才是：How often do most students surf the Internet?
而单独对two or three times提问的话,则用How many times做疑问词.