一道单项选择英语题~~~~~~~~~---Mom,I want to play football.---NO,you ____stop unless you finish your homeworkfrist.A.don't have toB.mustn'tC.not have toD.have to not选哪个?
问题描述：
一道单项选择英语题~~~~~~~~~
---Mom,I want to play football.
---NO,you ____stop unless you finish your homeworkfrist.
A.don't have to
B.mustn't
C.not have to
D.have to not
选哪个?
答
B
答
B 只有这个是强制的
答
选B not...unless是固定搭配,意思是直到...才...
而本身这个句子又有比较严厉的口气,说以用情态动词must