Which role does the teacher play in the following activities When the students are doing a group work task, the teacher joins one or two groups for a short period of time.

单选题

In which of the following situations does the teacher play the role of organizer?

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单选题

Which role does the teacher play in the following activities When the students are doing a group work task, the teacher joins one or two groups for a short period of time.

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单选题

What role does the teacher play in the deductive presentation of grammar?

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单选题

Which word does not go with all the others?

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单选题

Which of the following sounds does not belong to the allomorphs of the English plural morpheme？( )

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