单项选择题

How can I ever concentrate if you _______ continually _______ me with silly questions

A．have...interrupted
B．are...interrupting
C．had...interrupted
D．were...interrupting
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单项选择题
_______ no cause for alarm, the old man went back to his room.
A．There was
B．Since
C．Being
D．There being
单项选择题
_______ New York City is America's largest city, it is not the capital of New York State; Albany is.
A．Despite
B．Although
C．Because of
D．In spite of
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