What can we learn about the man’s experiment（） A．It is going on well. B．It has failed several times. C．It will soon be finished. D．It may have to be stopped.

单项选择题

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W: How are you getting on with your experiment
M: In spite of my continuous failure, I have already made some progress.

What can we learn about the man’s experiment（）

A．It is going on well.
B．It has failed several times.
C．It will soon be finished.
D．It may have to be stopped.