单项选择题

He ______ in the Bank of China for five years by the end of last year.

A．was
B．had been working
C．has been working
D．worked
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单项选择题
What do the poverty levels bring to struggling schools
A．Government aid.
B．Chocolate milk.
C．Children nuggets.
D．Canned fruit salad.
单项选择题
Can you do anything but ______ to me
A．to complain
B．complain
C．complained
D．complaining
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