问题补充:
— 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. may
D. must
答案:
A. could
(答案→)B. shall
C. may
D. must
解析:
这题考查情态动词shall的用法,shall可以用于第二、三人称表示“允诺,警告,命令”,这句话是表示允诺,句意是:别担心,你星期五可以得到它。选B。