单项选择题

Once the problem of the engine（）,all other problems will be readily solved.

A．solve
B．solved
C．is solved
D．will be solved

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单项选择题
When will the film begin（）

A．At 7:55.
B．At 8:00.
C．At’8: 05.
D．At 8: 10.
单项选择题
What is the probable relationship between the two speakers（）

A．Teacher and student.
B．Writer and reader.
C．Doctor and patient.
D．Host and guest.
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