题目内容
—-I wonder ________________.
—Voluntary doctors.
A.how do they call those persons B.how they call those persons
C.what they call those persons D.what do they call those persons
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题目内容
—-I wonder ________________.
—Voluntary doctors.
A.how do they call those persons B.how they call those persons
C.what they call those persons D.what do they call those persons