we —have to———study for a math test have to 画线的否定句
问题描述：
we —have to———study for a math test have to 画线的否定句
答
we don't have to study for a math test .不是do not need吗
we —have to———study for a math test have to 画线的否定句
we don't have to study for a math test .不是do not need吗