This diploma is important, which______that you have completed high school.
A.amplifies
B.certifies
C.clarifies
D.magnifies

A.A.amplifies
B.certifies
C.clarifies
D.magnifies

【参考答案】

B
解析：amplifies扩大；扩展；certifies证明，证实；clarifies澄清；阐明；magnif......

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