单项选择题

We regret ______ you that our research department will no longer provide services.

A．informed
B．inform
C．to inform
D．informing
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单项选择题
Customers are very angry ______ the delay of the ordered goods.
A．with
B．at
C．to
D．from
单项选择题
The television set that I ordered two months ago arrived today badly ______.
A．breaking
B．broke
C．damaging
D．damaged
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