I am so tired today. I swam the river in the morning and I walked the forest in the afternoon.
A. through, through
B. across, across
C. across, through
D. through, across
网友回答
A. through, through
B. across, across
(答案→)C. across, through
D. through, across
解析：across 与through的区别在于，前者表示从物体表面穿过，而through表示的是从物体的内部穿过，或某个空间穿过，根据本题的要求，选C