单项选择题

______a large group, your tone should be clear and long.

A．When addressing
B．While addressing
C．When you address
D．Upon addressing
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单项选择题
______today ,he would get there by Friday.
A．Was he leaving
B．Would he leave
C．Were he to leave
D．If he leaves
单项选择题
I advised______, but he turned a deaf ear to me.
A．him to smoke not
B．his not smoking
C．him not to smoke
D．his not to smoke
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