单项选择题


Questions 19 to 21 are based on the conversation you have just heard.

A．He’s explaining the language laboratory.
B．He wants to know Where the tapes are.
C．He’s showing her a new tape recorder.
D．He’s recording her voice on a tape.
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单项选择题
On January 1, 2002, the Euro______.
A．became the largest currency in the world
B．turned out to be the biggest event in history
C．took the place of 12 national currencies
D．became the most popular currency in the world
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