单项选择题

Passage Two
Questions 29 to 31 are based on the passage you have just heard.

A．What kind of thread to use.
B．How to design a needle which would not break.
C．Where to put the needle.
D．How to prevent the thread from getting caught around the needle.
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单项选择题
A．He can not find the plane ticket.B．His passport is not available then.C．His time schedule is not suitable.D．He does not know how to do with the empty apartment.
A．He can not find the plane ticket.
B．His passport is not available then.
C．His time schedule is not suitable.
D．He does not know how to do with the empty apartment.
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