Heaskedmeforthisbookmanytimes.Pleasetellhimhe____haveittomorrow.A.mustB.mayC.s
Heaskedmeforthisbookmanytimes.Pleasetellhimhe____haveittomorrow.
A.mustB.mayC.shallD.bothBandC
---Ihaven'tgotthereferencebookyet,butI'llhaveatestonthesubjectnextmonth.
---Don'tworry.You_____haveitbyFriday.
A.couldB.shallC.mustD.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?