单项选择题

A．instructional
B．educational
C．constructional
D．developmental
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单项选择题
A．questionB．problem’sC．problemsD．problem
A．question
B．problem’s
C．problems
D．problem
单项选择题
The French citizens were probably kidnapped by ______.
A．seven foreigners
B．some captives
C．Moslem extremists
D．Algerian police
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