问题
选择题
The company had about 20 notebook computers but only one third _________ used regularly.
Now we have sixty working all day long.
A．is
B．are
C．was
D．were
答案
答案：D
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The company had about 20 notebook computers but only one third _________ used regularly.
Now we have sixty working all day long.
A．is
B．are
C．was
D．were
答案：D