One of the responsibilities of the Coast Guard is to make sure that all ships_____follow traffic rules in busy harbors.
A. cautiously B. dutifully C. faithfully D. skillfully
上期答案
It was no____that his car was seen near the bank at the time of the robbery.
A. coincidence B. convention C. certainty D. complication
分析：coincidence 一致，同时存在 convention 大会，协定，习俗
certainty 肯定 complication 复杂化
选：A 发生银行抢劫时他的车子不在那附近