(According to) our estimate, only one (out of) three company managers (have been

游客2025-03-13  0

问题 (According to) our estimate, only one (out of) three company managers (have been) trained in the (field of) management.

选项 A、According to
B、out of
C、have been
D、field of

答案 C

解析 应改为has been。本句的意思是三个公司经理中的一个,因此用第三人称单数形式。
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