单项选择题

According to the passage, when you get a wrong number in making a long-distance call, you should（）.

A．check your number and call again
B．tell the operator what has happened
C．Ask the operator to put you through
D．Ask the operator what has happened

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填空题

Peter: Hello, Frank!（） Frank. Pretty good. Oh, Frank, how are you doing with your assignment

单项选择题

A. pass out
B. take away
C. back up
D. stir up