After days of fantastic space trip, the three astronauts walked out of the spaceship, .
A. tired but happy
B. tiredly but happily
C. tiredly and happily
D. tired and happy
网友回答
(答案→)A. tired but happy
B. tiredly but happily
C. tiredly and happily
D. tired and happy
解析：形容词通常用来说明主语的情况，常常可以单独或者引起一短语作状语；可以表示原因，也可以表示动作的情况或者方式，或者表时间，表原因。