核心问题
The policemen went into action ____ they heard the alarm. A. promptly B. presently C. quickly D. directly(全国研考,91-20) 我认为所有的选项都是错误的,因为它们都是副词,而这里需要一个连词。
词典解答
directly 在英国英语中,尤其是口语中,可以用作连词,其意义相当于 as soon as。例如:1. Directly I had done it, I knew I had made a mistake. (NAECD) 我刚做完这件事,我马上就知道了我犯了个错误。