单项选择题

—Are you a volunteer now
—No，but I ______．I worked for the City Spots Meeting last year．

A．used to
B．used to be
C．used to do
D．was used to
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单项选择题
______, we could forgive him for his mistakes!
A. Were he still a child
B. If he is still a child
C. Is he still a child
D. He were still a child
单项选择题
You can see a large signal on the wall: ______!
A. Long lives the PRC
B. Long live the PRC
C. Long does the PRC live
D. Long do the PRC live
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