问题补充:
More and more people prefer to travel on plane, because you can have a comfortable and quick journey, but make sure you get safe one.
A. the; the
B. a; the
C. the; a
D. /; a
答案:
A. the; the
B. a; the
(答案→)C. the; a
D. /; a
解析:可数名词前加代表一类人或事物, 第一空用the.表示类别;one 前有形容词safe修饰,第二个空用不定冠词表示泛指。