He asked me for his book many times.please tell him he __ have it tomorrow A must B may C shall Di选哪个呢?是may吗?

He asked me for his book many times.please tell him he __ have it tomorrow A must B may C shall Di选哪个呢?是may吗?
He asked me for his book many times.please tell him he __ have it tomorrow A must B may C shall Di
选哪个呢?是may吗?

He asked me for his book many times.please tell him he __ have it tomorrow A must B may C shall Di选哪个呢?是may吗?
B 表示“可以”,语气委婉.
A过于强硬； C只用于第一人称.

是may 因为语气must太重 shall=will 而且是第一人称

B可以 语气委婉

选B
B是排除法选出来的 其他的都不可以(D没看懂 忽略了)
至于may 就是可能的意思 说委婉很牵强 因为委婉的话用might才地道
shall和第三人称连用时 表示命令等强烈语气 或法律规定 详见百度词典 楼上的都眯着吧

选C,A表肯定,B表推测,同might,D是什么啊,看不懂.shall有一种用法表允诺,符合语境.