【C15】A．TeachersB．DoctorsC．ResearchersD．Workers

A．monitorsB．doctorsC．nursesD．researchers

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【C7】A．teachersB．classmatesC．partnersD．students

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A．victimsB．participantsC．researchersD．partners

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A．Farm workers.B．White－collar workers.C．Blue－collar workers.D．Not mentioned.

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Which group of people make some efforts to help pupils in elementary schools？A．TeachersB．R

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There are 40 teachers in this school,ten of whom are______.A．man teachersB．men teacherC．ma

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_________(58)A.soldiers B.doctorsC.enemies D.civi

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