单项选择题
When a mis-entry（）in the logbook, a red line would be drawn through that part.
A.has made B.make C.has been made D.is making
单项选择题 （）, which consisted of seven short blasts and one prolonged blast, all passengers have to go to their assembly station.
单项选择题 We have just received a message from shore（）assistance is on the way.
单项选择题 （）we stand away from the church bell, it takes time for the sound waves to reach us.
