题目内容：

Both of the students cannot work out the problem means
A.The two students can not work out this problem
B.Not all the students can work out this problem
C.One student can work out this problem,but the other can’t
D.Neither of the two students can work out this problem
为什么是c

优质解答

选C没错both 和all 在句子中如果和否定词连用,表示部分否定,若要表示全部否定,用 neither 和 none如：Both of us are not teachers.我们两个不都是老师.（不都是...注意：谓语用复数are）Neither of us is teacher....