—Ihaven'tgotthereferencebookyet，butI'llhaveatestonthesu...

问题详情：

—I haven't got the reference book yet，but I'll have a test on the subject next month.

—Don't ________have it by Friday.

A．could             B．shall        C．must             D．may 

【回答】

B

知识点：情态动词

题型：选择题