填空题
The railway station has always been a fascinating place, representing departure as well as ______. (arrive)
arrival
单项选择题 The hosts apologized for ______ that some of their guests might be vegetarians.
单项选择题 ______ the popularity of robots in Japan, the country’s robot-production growth is slowing down.
单项选择题 Not all birds can fly , ______ do all birds build nests.
