Teachingyearafteryear,hegradually

问题详情：

 Teaching year after year, he gradually_______much experience.

A. calculated        B. accumulated

C. abandoned       D. appointed

【回答】

 【解析】选B。考查动词词义。calculate “计算”，accumulate “积累”，abandon “放弃”，appoint “任命”。由题意可知B项正确。

知识点：动词

题型：选择题