試題詳解

14 While the passengers of a commuter bus are hardly a group, the “regulars” know and may well salute each other as well as the regular driver.
(A)The regular commuters on a bus may form a specific group of their own although they barely salute each other.
(B)The regular crowd would drink a toast to each other when they gradually become familiar with the bus route.
(C)The passengers on a commuter bus may not be an organized group, but the frequenters may knowingly greet each other and the driver.
(D)The frequenters of a commuter bus may salute each other and even the driver because they are a well-organized group.