单项选择题

Hello! You ______ be the assistant. I'm Mr. Munroe.

A．ought to
B．should
C．could
D．must
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单项选择题
He advised Mary ______ anyone about the shortages.
A．not telling
B．not tell
C．tell not
D．not to tell
单项选择题
Kenya's Tsavo Game Park ______ Susan much of the wildlife park she had visited in New Jersey.
A．reminded
B．recalled
C．received
D．remembered
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