第15题: [单项选择]Craig assured 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 参考答案:A 答案解析:[精解] 题型:词汇题。call forth表示“唤起,振奋”,如:a love song that calls forth sad memories一首引起我悲伤回忆的爱情歌曲;这里的call fo