题目内容
Dr Yuan makes______ possible______ one-third more of the crop in the same fields.
A.it; produce B.it; producing
C. it; to produce D. it; produced
C
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题目内容
Dr Yuan makes______ possible______ one-third more of the crop in the same fields.
A.it; produce B.it; producing
C. it; to produce D. it; produced
C