科目： 来源： 题型：单选题
This is 3-D printer. And this is an artificial (人工的) ear. Can you believe that scientists printed this artificial ear by this 3-D printer?
| A．a | B．an | C．the | D．/ |
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科目： 来源： 题型：单选题
What do you usually have for________ breakfast?
A piece of bread and ______ egg.
| A．a; an | B．不填; the | C．a; the | D．不填; an |
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科目： 来源： 题型：单选题
--- Excuse me, have you seen _______ umbrella here?
--- Yes. Is it _______ beautiful blue one? I saw it here just now.
| A．an, the | B．an, a | C．the, the | D．the, a |
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科目： 来源： 题型：单选题
What do the neighbors think of Li Lei?
They say he is ______ lucky boy.
A. a B. an C. the
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科目： 来源： 题型：单选题
It is believed that travelling to Yangzhou in ________ March is ________ enjoyable experience.
| A．/; the | B．the; an | C．/; an | D．the; the |
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科目： 来源： 题型：单选题
My cousin Andy can play piano very well, but he isn’t god at playing basketball.
| A．the; the | B．/; the | C．the; / | D．/; / |
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科目： 来源： 题型：单选题
- When were you born?
- I was born in 1989, _______ year of _______ Snake.
| A．a; / | B．the; / | C．the; the | D．the; a |
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科目： 来源： 题型：单选题
—What did ________ old man in red buy in your shop?
—He bought ________ umbrella.
| A．a ; / | B．the ; an | C．/ the | D．an ; a |
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科目： 来源： 题型：单选题
He is__________ outgoing student from _________ university in America.
| A．a;a | B．a; an | C．an; an | D．an; a |
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