单项选择题

A．couldB．shallC．mustD．may— I haven't got the reference ……

— 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

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单项选择题The visitors here are greatly impressed by the fact that （）people from all walks of life are working hard for （）new Jiangsu．

A．不填；a
B．不填；the
C．the；a
D．the；the