Tom assured (向……保证) his boss that he would _____ all his energies in doing this new job.
A.call forth B.call at C.call on D.call off
人气：179 ℃ 时间：2020-05-14 03:06:23
解答
选A
call forth 唤起；振作起；鼓起；使产生；使起作用
call at 拜访,访问；停靠（车站）
call on 访问,拜访；号召,请求
call off 取消；依次叫名；叫走
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