大学英语大学英语大学英语四级(CET4)1993年1月大学英语四级(CET-4)真题试卷
题目内容

The first full-scale huge recycling plants ________.

2024-07-09

A.began to operate fifteen years ago

B.will probably take less than fifteen years to build

C.will be built fifteen years later

D.will probably be in operation in fifteen years

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