单项选择题

When______ scientists first suggested the possibility that one person should speak directly over a long distance, few people took them seriously.

A．imaginable
B．imaginative
C．imaginary
D．imagined
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单项选择题
You can't take her promises______; she never keeps her word.
A．severely
B．solemnly
C．strictly
D．seriously
单项选择题
To drive legally in Illinois, you must have a valid driver's______.
A．permission
B．license
C．certificate
D．warranty
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