Popular music in America is _what every student likes.
问题描述：
Popular music in America is _what every student likes.
1.Popular music in America is _what_____ every student likes.
that ,how,what ,when
2.They make a CD or tape which radio stations use in every state.
which ,what ,where ,how
就想知道原因.为什么别的不能选
答
第一句是be加表语从句“_what_ every student likes”是句子代替sth.的位置以为“每个学生都喜欢的东西”
第二句是定语从句,定语从句的连接词which用来作从句的宾语 radio stations use which,which代先行词a CD or tape