问题补充:
He reached the station only that the train had just left.
A. tired;learned
B. tiring;learning
C. to tire;to learn
D. tired;to learn
答案:
A. tired;learned
B. tiring;learning
C. to tire;to learn
(答案→)D. tired;to learn
解析:tired此处是过去分词,表示主语的状态。only to learn…此处的不定式表结果。