He asked me for this book many times.Please tell him he ____
He asked me for this book many times.Please tell him he ____ have it tomorrow.A.must B.may C.s He asked me for this book many times.Please tell him he ____ have it tomorrow. A.must B.may C.shall D.both B and C ---I haven't got the reference book yet,but I'll have a test on the subject next month. ---Don't worry.You _____ have it by Friday. A.could B.shall C.must D.may 第一题答案为D,第二题答案为B.第二题是否还可选D? shall 和may作“允许”讲时,区别是什么?