1.D a little修饰比较级 more sad
2.A 这是一个倒装句,倒装的是主句.正常的语序是 If you don't stop working,he will not stop working,rither.
3.A 这是动词不定式的被动式.整句意思是:我们要求被派到乡村去工作.
4.B with的复合结构,run out of 的逻辑主语是 drink and food二者是被动关系,run out of drink and food;如果用run out 则为
With drink and food running out,...