in the Moluyuan on a March afternoon, he could feel the warmth of spring.
A. To walk.
B. Walking
C. Walked
D. Having walked
网友回答
A. To walk.
(答案→)B. Walking
C. Walked
D. Having walked
解析：考查分词用法。Walk与he构成主动关系，又与位于动词同时发生所以用doing形式。句意：在三月的一天下午走在Moluyuan上，他能感觉春天的温暖。