It was recommended that passengers _____ smoke during the flight.
A、notA
暂无解析
Underthis____pressuresomeoftherocksevenbecameliquid.
_____, he would not have recovered so quickly.
Although____Spanish，heattendedthecourse.
Itisnotuncommonforthere_____problemsofcommunicationbetweentheoldandtheyoung.
The three men tried many times to sneak across the border into the neighboring country_____ by the police each time.
