单选题“Allmyclassmatesdon’tspeakJapanese”

单选题 “All my classmates don’t speak Japanese” means “________”.A.All my classmates won’t speak JapaneseB.None of my classmates speaks JapaneseC.Some of my classmates speak Japanese, some don’tD.Both my classmates and I never speak Japanese

C解析根据左栏的讲析，原句中所表达的意思为部分否定，与C项意思一致。B、D两项均表全部否定，A项虽表部分否定，但用won’t不符合原句意思，won’t有“不愿意”的含义。再如：Not all ants go out for food．相当于All ants don’t go out for food.并非所有的蚂蚁都外出觅食。

这个问题我还想问问老师呢