How often do you have science classes?可不可以说成How often science classes do you have a week?有同学这样说不知可不可以
问题描述：
How often do you have science classes?可不可以说成How often science classes do you have a week?
有同学这样说不知可不可以
答
不可以的
science classes是名词短语，是一个名词词组， 不能用how often这个副词来修饰的。
答
不可以.
应该这样说：
how often do you have science classes in a week?
often后面不能跟名词!