【单选题】I regret having left the work unfinished, I ____________ everything ahead carefully.
【单选题】I regret _______ him a thief, but I regret even more his stealing my watch!
【单选题】I _______ that the job has been filled.
【简答题】I regret ______ (not take)his advice.
【单选题】船舶在浓雾中航行,则船舶的了望人员:
B.
除保持雷达瞭望和听觉瞭望外,还应保持不间断的视觉瞭望
C.
应使用适合当时环境和情况的一切有效手段保持不间断的瞭望
【单选题】I regret()that I'm unable to help you