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According to Dudley-Evans and St John (1998), the role of the ESP teacher is extremely varied. In addition to being a language instructor, the ESP teacher should also act as:
I. Course designer and materials provider.
II. Needs analyst.
III. Content expert in the learners' field.
IV. Collaborator with subject specialists.
Which ones are correct?
Only I and III.
Only II and IV.
Only I, II and III.
Only I, II and IV.
I, II, III and IV.