The boy ___ operating and the special medicine wii work A needn't.B doesn't need 这里为什么选B 还有语法正确的表达是不是 don't need to do.n
问题描述：
The boy ___ operating and the special medicine wii work A needn't.B doesn't need 这里为什么选B 还有语法正确的表达是不是 don't need to do.needn't do
答
第三人称,does是助动词,又是否定,所以是b