单项选择题

What role does he/she play when a teacher explains the purpose of a task，the steps to do it and its time limit？（）

A.An organizer
B.An observer
C.An evaluator
D.A prompter

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热门试题

单项选择题Which of the following describes the process in which one’s language ability is developed in natural and everyday situation？（）

A.Performance
B.Competence
C.Learning
D.Acquisition

单项选择题Which of the following describes the function of the sentence “It is a nice day，isn’t it”？（）

A.Informative
B.Phatic
C.Directive
D.Performative