单项选择题

Our country has grown rich because of its ______ with other nations.

A．commerce
B．commerces
C．commercial
D．commercials
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单项选择题
The rain was heavy and ______ the land was flooded.
A．consequently
B．continuously
C．constantly
D．consistently
单项选择题
I hope your ______ for the job of typist will be successful.
A．attempt
B．attention
C．willingness
D．application
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