【題目】Over the past 12 months the company ______ a 10 percent improvement.

A. managed B. manages

C. had managed D. has managed

【答案】D

【解析】

考查時態(tài)。句意：在過去的12個月里，該公司取得了10%的進(jìn)步。表示“過去的動作或狀態(tài)對現(xiàn)在造成的影響和結(jié)果”，用現(xiàn)在完成時，故選D。

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